Same here ... you can find lots of cheap stabilization options at places like HK (I think I bought something from 'orange'.) I still haven't installed it anywhere though. I'm not saying they don't make a difference or aren't useful ... but ...
For learning to fly: find a gentle/slow/stable/light airplane to train on. Pick a nice calm day/time to train. Some extra electronic gizmo isn't going to be the deciding factor. If you are putting this into a higher performance/faster airplane, then you will just crash into the ground straighter and less wobblier than without stabilization. Edit: these units also enable you to crash on windier days. The less expensive units typically just stabilize out the rotational disturbances and make the plane feel bigger ... like it has more mass. But they don't level the wings or save you from student mistakes. (Maybe I'm wrong, it's been a while since I looked ...)
Things like px4 and ardupilot can level wings and fly autonomously, but that adds so much extra complexity ... they create a whole new set of things to learn and new set of things that can go wrong. (But these can be super fun to experiment with if that's what you are interested in.)
I don't think you need fancy electronics to learn how to fly. You just need a good airplane and the mind set to see it through despite possible set backs. Flite test makes quite a few that are cheap and quick to build ... perfect for the learning environment! (A good instructor and sim time can really help too.)
Just my 2 cents.
Curt.