If you want to wait on SA's to show up that's fine, but there's a good supply of other 1911 brands out there.
Rock Island Armory 1911's are surprisingly nice & I've picked a couple of those up, and the other Turkish brands like SDS, Tisas & Girsan are also nice. My gunsmith was saying how nice the Girsans are. Other Phillipino 1911's like ATI are nice.
And the prices are very good considering the desireable features on them, as you see on SA's.
My SA's are almost safe queens now vs. everyday-carry guns compared to the RIAs.
I can get an RIA or Turk 1911 locally any day of the week in my area for very reasonable prices that haven't inflated the last few months.
My .02