Anyone else have an opinion on getting an extended warranty? 2009 650 vert. 13K mls.

Anyone have any advice: just bought a 2009 650 convertible with 13,000 mls. One owner, clean record, mint condition. Drives like a dream and no problems....yet.

Warranty expires March 2013. Do i get an extended warranty? If the answer is yes, which one should i get?

I could afford an expensive repair once in a while but don't want to be dumping $$ in the car frequently. I am concerned that with the low miles, i may not really need the warranty for a long time but if i don't buy the warranty by a certain date after March, i cant get it or there will be some kind of limitations on it.

What to do?