The fact that bigger is better is undeniable. Whoever tries to tell you otherwise hasn't flown a bigger helicopter.

If you bring budget into the equation, then the problem changes. If you are looking to go all out with 3D aerobatics in the future, then go with a 50, bottom line. If 3D aerobatics is not your thing, and more relaxed "scale" flying with the occasional loop and roll is your cup-of-tea, then a powerful 30 could be your ticket.

I'm not going to "tell you" which one to buy, becasue that is dependent on your local support base. Ask the local pilots what they fly and why. Make your decision from there. What is the point of having a great helicopter, that you can't set up because nobody around you knows how to?

Rafael