Catching up!
Interresting discussion! When we first imported the Corona receivers in Ireland with Joe, I did a test at the slope. Too cheap to be true, so I had to try!
I setup my radio in test mode, and walked as far as I could with the receiver, the cheapo one, and the most expensive one I had at the time, a Graupner SMC20 (200 euros receiver...).
Well, the SMC was glitching way before the Corona!
This is the one on my ASW15, never had a single glitch with it, whatever the number of pilots in 35 around, and how far or high I fly!
Pretty much all my gliders use these Corona receivers, and never had an issue.
Same can be said for the Assan 2.4ghz system, as I have a few friend using them on huge machines without a single issue (they were 10 euros receivers at the time! On 2000euros+ machines! Talk about faith).
For the servos, the only failure I had from one, was with an expensive one. Might be unlucky, but I use cheapo HK stuff without any problems, but I run them all on the servo tester for 30 minutes or so before putting them on a glider now. And I stick to the one I tried and tested.
So I guess, it is pretty much a hit or miss thing, were you can get very lucky, or unlucky, whatever the cost of the equipment, but I think that saying that the more money you put in something will guarantee you the best, is not necessarily true these days.