Is No-Limit worth switching to at B&M?

[Toonces]

I am a limit player. I've had very good success at limit crushing the weak games, but since my local casino introduced the $200 NL game full-time, all of the crappiest and most deep-pocketed players now play strictly the NL game and games higher than 10/20 rarely even come together.

The question is, do I try to improve my NL skills to play with the fishies or play to my strengths in the limit games. My current weaknesses are card reading and my poker face, neither of which is critical in the limit games I play but far more important in NL.