Been using plasma for ps3 and pc game. No problem at all. Those burn in story is so old. As long as you don't put up a static screen overnight I don't see any problem. For the price above, you can get 42" Full HD plasma or top up a bit get 50" Full HD plasma. Those mid range LCD can't compare to plasma quality unless you go for higher model.

Reflection is due to placement. If you don't face window or direct light source, then no problem. Another trick is to use ambient light. Put some T5 light behind your plasma.