That's a useful poll.
It made me realise - (I did already suspect!) - that I don't care a great deal about BC. Nice but not essential - like most people I'd imagine.
I was thinking about what games I may play again next gen and, shockingly, I realised that I very rarely finish games (included on the list are Gears, Uncharted, HS, Kameo, Condemned, R&C... the list goes on).
For some context: I have a 60gig PS3 and an Elite.
I didn't have a Xbox and the only last gen game I play on the current gen is Buzz. Oddly enough I've only ever played that on my PS3.