I like diversity. I don't want 2 planes that are very similar. I am also obsessive compulsive, which means I like to fly the heck out of one till I get bored with it, then switch to another. I never take more than 2 at a time to the field, and wouldn't even if I could. When I'm down to one plane that is flyable, I am in a quandry till I get another one ready. I don't like being down to one plane.