Pretty much exactly what 3A says.

Good quality single color wet paint* with a clear coat starts at about $500. Adding decals, more colors, striped lugs, etc... just goes up from there.

Spray cans or "some guy" that is going powder your bike for $200 is only going to make you sad unless you have very low standards.

If you just want to protect it from the elements and ride it, powder has really improved. It can be masked, layered and clear powder applied over a base coat.

I haven't powdered a bike. But we have parts at work that are part of our product that are powder coated and they look really good compared to the standard powder coat you see on lawn furniture.

*wet paint meaning stuff that comes out of a can as a liquid vs. powder coat.