If you like the car, I'd look into extended w'tys.
I got my E90 set up with Ext. Maint+W'ty, and I'm glad... I'm on track to drive 25K this year, and the cost of gas just got halved. :eek: My limited experience with BMW's outside of warranty is an E36, which was reliable, but when something superficial gave out, it would get costly, and the cost of a brake job makes the extended maintenance worth it, IMO...