So I bought a 4th today...
I was at 4 Wal-Marts this weekend and only one had any AT-ST's left and there were only 3 at full price. So I had a $10 card from something and so I decided $10 off is good enough and I bought one more.
One WM I was at had 8 but moved them (finally) out of clearance and to a main aisle, and they started selling so they were out... Another sold out ages ago, and the other one that had none didn't even have them in the system (I've carried a barcode with me to scan just as I'm walking by, haha).
Anyway that made me cave. No clearance AT-ST's for me. The way this sold though, I think it's inevitable it'll be out again. I just hope the deco is improved on any future version. I'm hoping I can get maybe some second-hand down the road for less. $30 would be fine, I just will hold at 4 now. One WM I visit semi-frequently I know has some left tucked away in a weird part of the store so I hope those go down in price, but at this point it seems less likely.