Papa, you might want to notice that most of the pattern guys (aerobatics) use 4-strokes.

For a beginner, it's easier to learn to tune a 2-stroke. It can be done by ear, and you don't need to own a tach. If your flying buddies only know 2-strokes, you're better off with a 2-stroke for your first engine.

Once you're ready to go to the second plane, do some more reading in the engine forum if you're still interested in 4-strokes. They've got many advantages. The real reason why they're not as popular is cost.