Should i sell my desktop for a laptop?

Alright well i don't know if I should sell it for a laptop. I have a Gateway FX 6800-01e with a GPU upgraded to a ATI 4890. It's a great desktop but i hardly use it. I just hate having to sit a lean over alot so i can game on it. That's really all i did on it was game and Max out on everything without lag including Crysis. I barley use it but I don't want to give up the chance to possibly max out Crysis 2. I'm just wondering if anyone has any advice. Should i give up my desktop for a laptop. If so then what laptop should i go for? Excluding Alienware they are overpriced laptops.