Guyver- I bought a used copy of Realflight and it was the best investment I've made in the hobby yet. I wouldn't have paid $200 for it, but I got it for $125 along with two expansions which I Ebay'ed. I had a phobia about getting upside down, so I practiced rolls, uplines and downlines, snaps, spins, etc on it. I set it with crazy wind settings and have flown aerobatics on it enough to be comfortable at the field in nearly any conditions. It's taken a lot of the fear out of the hobby for me and increased the fun factor dramatically.