A Corsair makes a perfect trainer. It teaches you how to properly put all of the pieces into a trash bag and clean up the area after it crashes.
There are a ton of good trainers. From the simple flat foam $2.00 scratch built foamy to the RTF that are really almost ready to fly.
http://www.rcgroups.com/forums/showthread.php?t=1174874
http://www.hobbypartz.com/60p-dy-1026.html
http://www.hobbypartz.com/79p-th9x-r...nel-radio.html
http://www.hobbypartz.com/98p-25c-1000-3s1p.html
http://www.hobbypartz.com/77p-sl1000-2s1p-20c-2222.html
Use the foam sheets from dollar tree for $1.00 each. Soak them with water, let dry, peel paper off, cut, use hot glue. fly, crash, glue, fly, crash, glue, fly crash, glue, fly again.
Buzz.