Probably the same guys that have bought over the last 2 months? You could ask that same question for any coin after adding a feature.

For me POS is not so much about instant cashing in, but to have a functional coin and no inflation. I guess everyone is a bit disappointed with the development and I would expect alot coming after POS. I am not so sure actually about the ton of guys wanting to cash in, alot of those guys might have sold already (there were plenty of good opportunities where I sold parts), we are waiting since more than two months. Everyone expecting a huge pump will be disappointed, I think.

You are right though, not too many are going to buy this coin just for going POS (and we have yet to see how the POS exactly works), we have a ton of POS coins already. But no one was buying this coin for its features anyway (pure scrypt), we all had other reasons.