Personally my limit is choice paralysis. I have noticed I am not really able to build anything for myself but can cobble together something real fast and expand on concept when given a feint idea. So I guess my limit is more conceptual and not technical as I do build from backend to front. Oh and forms I hate forms.

Agreed, I wanted to mention them, they have good choice between a fuckton of space or speed. Personally I just enjoy having a solid VPS I can use as I wish.