I've gotten abandoned Dish 500 Legacy or DishPro from neighbors changing service.
I caught one neighbor on the way to the dump with a DishPro 500 setup, complete with DP34 a few years back, when that switch went for $100.
Think I gave each a $20 bill as thanks.
You can find 'em in the trash, if you look in the right places.
Otherwise, shop at DishStore.Net
I have, and been VERY pleased with their service!
Claude took great care of me.