I'm kind of surprised (and disappointed) that dratv went that way too.
I know there is a significant shipping discount thru eBay.
So now, dratv builds shipping fees into their pricing, so they can offer free shipping. Then, with free shipping, there is no, combined shipping, discount. I'm sure it all plays in.
I'll bet they are saving some time by using eBay too...it's not nearly as personal as a web based "family owned business". Less phone calls, emails, and cheapskates looking to "talk to the boss about a..." deal...or advice on how to build engines, etc.
But as eBay fizzles...dratv might get fewer overall looks, at their store..?