As long as it has its own independent graphics card , gaming on a laptop can be a great thing at times

Honestly if you're going to go with a laptop check craigslist i found a 800$ laptop on craigslist for 550$ and im pleased i can play every game on decent settings. 550$ is still a lot but its when i got 7k from taxes. my friend has a 2,000$ computer and its probably the best thing i've seen in person it runs so smooth on every game ultra settings its all up to you.

PCS are better than laptops

mini-ITX would be the way to go, as others have said. You can just throw together a decent micro-ATX board and maybe a HTPC-esque case with a handle on it and you'd be good to go. The only down side of course would be the lack of a built-in screen, but it's almost just as portable as a laptop.

Mini ITX is seriously bad a$$. It makes people question the PC as they all think it is poo, than bam, i7 4770K, GTX Titan, 16GB RAM.

I bought a gaming laptop simply because I needed it for school. It is very powerful with an Intel i7 2.8ghz with an NVIDIA 860m. It is very light with a 15.6 screen. I honestly see no big disadvantage in laptop gaming. I get to bring mine places easier and it runs as fast as most desktops. If i want a desktop experience I simply hook my laptop up to my monitor and push it to the side. Desktops are easier to build and upgrade yourself, that's the only downside I see.

Desktop would probably be the best option