I was planning on picking up Rock Band 2 but I'm a bit confused by the options. First off I'm assuming that "Band in the Box" means you get the whole kit, but I can't find a Rock Band 2 "Band in the Box" edition. The only full one I can find is for Rock Band 1. So if I buy that can I then go on to buy Rock Band 2 (just the game) at a later date, or the Beatles version and they'll work with the old accessories? I've also found The Beatles Box version for £180 (more than what I paid for my Xbox!), how come that costs so much compared to the RB1 Box version (£100)? Or is it just to snag moneys off people sneakily?