RE: beginner plane purchase logic
Things like the Super Cub and the like are an inexpessive way to get started in what can be a very expensive hobby.
It's sort of like wanting to play golf, so you buy 2 clubs and head out to a $5-a-game-par-3 course. It's not the real thing, but it's close. However, if you want to go to a REAL golf course, you'll need something more than the two clubs you own.
With a Super Cub, you can get airborne for $150. For a "Real" 4-channel glow-powered trainer, you're looking at at least $300 plus another $100 in field equipment.