Your only point appears to be "gloom and doom" - so people don't sell mining equipment on eBay, I'm so shattered by this news ..... all industries mature and just have a few big players. That's just what happens. Deal with it.
My point is that the industry is killing itself. I think you underestimate the importance of the hardware aftermarket - altcoins generally aren't worth squat, look at how people flocked to PeerCoin and upped the diff there astronomically when it "caught on". Same happens to any sha-based coin that hits exchanges in any form. So for any reasonable ROI on most hardware you need the aftermarket. Right now, folks are pushing towards things that can't really catch-on in the aftermarket, like a Neptune or an AMC. Those are investments, big ones, for a market that is continually gouging itself from every direction.
"all industries mature and just have a few big players. That's just what happens. Deal with it."
We're figuring out how to "deal with it". Right now the community has responded with-
Shares in someone else's hardware => not worthwhile.
Shares in AM => so far, not worthwhile.
Anything shipping in auctions/group buys => not worth the BTC you spend.
What's left are the big players. They're going big, very big, f' the community big. Most of the people are currently invested in BTC will likely leave because you can't afford new hardware and nothing is worth the BTC you'd spend on it for partial ownership. And any industry needs the peons, needs the folks who buy usb sticks on eBay, needs
the customers.
Right now we're hoping that our current "doom and gloom" outlook is wrong, but none of the "big players" are doing anything to encourage a healthy future for this side of BTC.