I too am thinking about selling the S3 as I need more doors. I've looked about and think I'll go for an S3 SB, but try and get a MY11 one.
I've had buckets in the previous 2 S3's and would love them again, but no SB's with buckets kicking about. I may go for standard seats, but get S Tronic instead of manual. This could potentially be my 3rd S3! I'm almost as bad as DaveS3Turbo!
Mine is a 2010 BE also, Sprint, buckets, rear sensors, auto lights wipers with 7.5k on the clock. Got offered £24.5k from a dealer as a p/x. Not sure I could wait 3 months or so for a buyer if I found the right car, and so would also stand to lose a chunk. Seems to be par for the course though unless you've time on your hands, but I need the new car before March as I'll be chauffeuring the wee one to nursery. Looks like I'll be set to lose anything I made on the 13% discount I got on this one.