As a developer, I need a machine that's powerful enough to develop on; being light and having battery life is a nice-to-have but not essential. If that means I have to buy a bulky gaming laptop rather than a sleek portable one, that's what I'll do. At the moment I can just about manage with 16GB, but it's definitely the limiting factor on my current machine (surface book 2, which is capable of some pretty good gaming).