Should I buy a Galaxy Nexus or wait?

It's about time for me to get a new phone, and I'm interested in getting an unlocked Galaxy Nexus - but should I really get one or wait for the next Nexus?

I'm only interested in stock Android - I don't much care for skins and manufacturer apps bogging down the phone. Will it be fast enough for perhaps a year? I don't intend to buy again for at least a few months. I don't use apps (coming from an iPhone - I only have five apps installed) and I don't play games (beside some casual time wasters).

All I do is browse the web, email, use Facebook and stream music and Youtube. Very basic stuff.

I'm quite impressed with the speed of JB and Google Now - and the Nexus is right in my price range. Would this be a bad time to buy one though?