Eddy - I wouldn't say that we're so much from different schools. Heck, I laid out full price for that O.S. CV-RX! I just normally try to save money when it looks like there's a good alternative to buying the absolute best product or name brand.
With that CV-RX - I wanted to venture into the OS world to see if all the hype was valid. It is a GOOD engine, does hold a tune very well and it's powerful. But is it worth DOUBLE the cost of an M-16? I suppose if I had received a turd M-16 I'd be the first to say yes. But I got a good one. Megatech customer service has been great too.
Which takes me to the next point - Customer Service.
I'd have to take your statement one step further though - Product Quality is important, but Customer Serice is equally important....and THAT is what I feel is that extra 1% or as you state "piece of mind". Knowing that if the product fails, they'll stand behind it.
If you can afford to buy only "top shelf" equipment then by all means more power to you. I know I can't afford to always buy the best - I'm always looking for a good equitable product to the big name products. Sometimes I get "stuffed" though too, but not often because I do a bit of research before I buy!

BTW - I've used the XTM failsafe with both regular batteries and recharchable NiMh's - NOT reciever packs, 'cause I'm too cheap to spend the bucks on them. I've NEVER had problems with my setups. I have heard plenty of warnings and grips though!