And just to point out why I'd post this in a computer forum, if not for modern computer technology, we wouldn't have these sophisticated models to play with. The NAZA flight controller is nothing more than a micro computer running a very complex program. Even the ESC that control the motor speeds has its own micro computer in each one. Some higher end brands allow you to get in to the programing to set the parameters. My Spektrum DX7s is a micro computer based transmitter. It can be programmed for 20 different models and lets you call for each model from a menu.
The RC model hobby as we know it today is mostly thanks to those that paved the way to miniature computer systems. Smart, powerful, fast, reliable systems that run on whispers of battery power and weigh next to nothing. External sensors also play a large part of our hobby. Gyros, barometers, accelerometers, GPS, and on and on.
With out these I can assure you flying a remote control model becomes a serious challenge. The old timers did it and my hat's off to them, but todays RC model enthusiast comes from many different walks of life and age ranges that have the enthusiasm but don't have the old school skills. With modern computer and electronics technology even young kids are getting to fly.
However it still takes starting off with the basics and simple hardware and working your way up to the more sophisticated models. It can be done. It just depends on how bad you want to and how deep your pockets are.