Yeah, I agree, getting a laptop for gaming isn't efficient. A desktop computer will play games more effectively with way fewer problems and better durability at a cheaper price. I mean, if you have your reasons go nuts, but it's worth pointing out that desktops and laptops aren't really equivalent.
I'm interested in all this stuff too though because I'm looking to buy a new laptop and I know nothing about them really since I've never bought one before (I only inherited an old crappy one). I don't need it to play games but I do need it to run well.