I'm a fan of DSA, I think we need more! Too many SA keysets out there (plus super long queue for them).
If there's so many, how come I can't find any ?
Because all the SA sets "out there" are on people's keyboards, not sitting in some warehouse waiting to be bought.
Group buys typically have a very narrow window of opportunity for purchase, and they generally only make enough stock to fill the pre-orders. So if you missed out on the group buy(s), you are out of luck. Unless, of course, someone wants to sell their (used) set, which is pretty rare for SA sets.