Protien powder types?

Is there really a hole lot of differance between the diferant types of protien powders? And if there is, is it so significant that you should spend more money on the **** that is suppose to be better? I could never tell the differance other than taste and mixability.

Whey isolate is good, and micellar casein are good. It depends on when your thinking of taking the protein. PWO is definately whey isolate. Those are the best IMO and are worth paying for.