Hate to say it mein, but there is no way you will find anybody in the forum that's willing to pay anywhere near the $17.50 your accustomed to getting for these on e-bay.
I too have a bunch of obsolete hardware that is literally just gathering dust on a shelf and have taken a look at what I could dump them for..it ain't much. Because of this I've decided to go ahead and simply hold onto them in the hopes that perhaps they might be valuable antiques in another 3-5 years. You've seen what you can get for a working Apple I right!? Just a thought
As I said, I wasn't expecting to get e-bay prices on here. I just thought it would be easier to sell them as a 1-shot deal for BTC rather than having the rest go through fee-bay for 1-2 units per order and have them take out their pound of flesh for each one and then having to spend the time packaging/shipping small orders. I have the original boxes for them so it's much easier to ship a case of 20 at a time. But if there are no takers with reasonable offers here, then I guess I have many small trips to USPS on the way to work in my near future :-P
These are not obsolete quite yet and they are not on a shelf gathering dust. They are currently all working flawlessly, but it's just getting to be too much to administrate them while working a full-time job, considering another part time job and also working on several other projects on the side. They are still profitable, but at this point I'd rather just get standalone units like antminer S3/S4s that keep going and are not dependent on a PC to run them.. so, I'm also considering trades for antminer units.