After reading this topic it is clear to me that the R/C market and Traxxas' position in it is just another market with it's specific properties.
Some things can be predicted where other things are surprising.
My last purchase of a Traxxas car was more than a year ago. The chance of buying one again is rather tiny. And that has less to do with Traxxas than with the fact that my garage is sufficiently filled to my taste.
I think the same will work for many others. At a certain moment the market (or at least parts of it) gets saturated.
The step to the flying part of the R/C market that Traxxas made is not that surprising to me. Only the way they did it was somewhat surprising. I have the idea that Traxxas didn't want to spend a lot on development costs. A wild guess is that they put an amount of money in development of products like the XO-1 and Funny car which doesn't get paid back as easy as they thought.
Development costs for the DR-1 and QR-1 are most likely a fraction of what they put in other products.
The well known Traxxas support is a smart and distinguishing marketing tool. Increase the price of a product to make it more easy to replace parts for free or relatively low costs. A replacement for a broken heli for only half the price sounds awesome, but of course that is a calculated risk. If it is a risk at all.
Ever thought about pricing of spare parts? Buy a complete car in separate parts and see what it would cost. Subtract the costs for the plastic bags and you will still have a huge difference.
In the end everything depends on your personal situation and the ability of manufacturers to adapt to that. Budget, personal taste, local prices (the cheapest 1/10 Rally from a Dutch LHS is still >$500 and that is without a battery), and local support.
Nobody is born with experience.