Someone sharp as a whip thought hard about the price-fun balance of the latest Royal Ballet triple bill. An accountant, probably.  Deep inside the cloisters of the Royal Opera House, they said: “Now top price stalls are £97 each for Romeo and Juliet, that’s nearly £200 a pair. Interval wine at £6 a glass, £24. A programme, train fares from - say - Windsor at £15 each, plus taxis. That’s £260 for their evening. So for the triple, if we’re going to charge £37.50 top whack, we can hardly give them more than a third of the fun, can we?”

You don’t usually find ballerinas in Monument Valley. Cowboys, maybe, but not a pale, slender girl in a glistening golden tutu alighting like an exotic butterfly briefly on a silk-shod toe in the very same red dust that John Wayne rattled across in Stagecoach. The cover pictures for the Royal Opera House season brochures have fielded some spectacular pictures, but the new spring image is symbolic of the enduring nature of the dancer's will to survive. Sarah Lamb, the translucent blonde from the US, is back on pointe after a year when her career appeared to be over.

There are times when critics sheathe their quill tips, others when they don’t. Rupert Pennefather, the tall blond Englishman who has been earnestly promoted by the Royal Ballet as hard as they can to be the next Jonathan Cope, has attracted some devastating notices, and last night’s emergency outing as Romeo isn’t going to fatten his cuttings file.

The Noughts were a bonanza time for builders, scientists and bureaucrats in the dance arena, throwing up numerous fine dance venues and bases, collaborating intellectually with modern choreographers, or targeting social minorities, but the blazing new trend that captured public imagination dodged all of those - it came up from the street. As if to show that dance doesn’t need all these people to organise it into existence, hip hop was the powerful new physical force in the land, providing all the things that the contemporary dance movement of the Nineties seemed increasingly to ignore.

There were some odd sights in Christmas Day viewing but none more discomfiting, I’d bet, than seeing a ballerina lying on a physio’s couch having a leg dragged quickly up to touch the side of her head while the other leg lay perfectly still pointing downwards. Can the body really do that? Another weird sight - dozens of people in full 18th-century French costume and wigs dancing in 40-degree heat on a Cuban stage. Meanwhile coachloads of dancers were going down with swine flu and a 45-year-old retired dancer was flown in from Germany to take the part of a 20-year-old.

The improvement in ballet film from video to DVD has been colossal and welcome. The audio experience too has improved by leaps and bounds as it is more and more geared towards computers with earphones, rather than dodgy TVs. Hand in hand with technological advances has come a long-overdue new openness to recording by the Royal Ballet, which is now catching up with other leading world companies in considerable style. Here theartsdesk reviews significant new ballet DVDs plus some Christmas dance treats. Our reviewers are Ismene Brown and David Nice.

The well-prepared adult accompanying an under-10 to the Royal Ballet’s Tales of Beatrix Potter will take with them a pillow and a potty, the pillow for themselves, the potty to tuck under the seat for the necessary moment during this 70-minute marathon. Should the Stasi at Bag Search at the Opera House entrance insist on the potty being checked into the cloakroom, the canny adult carries a supersized handkerchief as backup, to stuff into the child’s wailing mouth when - 30 minutes in, with infant acuity - it realises that it has seen the best bits and there are another 40 minutes of these capering costumes to go, while all the adult wants is a bit of shut-eye until the thing is all over and they can get on with Christmas.

The spy out in the cold, the alienated Heathcliff of ballet, rough-hewn, moody and a little frightening - this is an image that’s commonly paraded of the choreographer Kenneth MacMillan. His ballets stand up that image, staging barely watchable sexual urges (The Judas Tree, My Brother, My Sisters), accusing polite society as a force for evil (Mayerling, Las Hermanas), smashing the porcelain in ballet’s china cupboard.

It‘s when you see how popstar fame can reach people with more luck than work that Carlos Acosta’s achievement in becoming a truly popular ballet star is underlined. Ballet is just the toughest discipline there is. Great elite artists and great popular artists are generally divided by an insuperable wall; often there’s a sell-out of some kind when the great elite artist achieves wider popularity, the dancer gets cocky or vulgar or goes on too long. But I have to exempt Acosta from that.

If Margot Fonteyn and Rudy Nureyev were the most massively important people who ever existed in ballet, then the most massively important question that ever existed in ballet was, did they sleep together? Last night Margot got this over pleasingly quickly. There was the quivery BBC anno at the start that there would be scenes “of a sexual nature”, and hop-skip-jump the couple were at it like rabbits straight after their first performance together.