I haven't been in a LGS for a while to look at guns. The last few I've bought were either online (GB) or at a specific store where the manager and I communicate by email. She's very good about remembering what I'm looking for and setting aside a gun for me. She knows I will make good on any open commitment.
At the moment, I'm trying to turn my regular G48 into an optic gun, either by trading it for a 48 MOS or getting it milled. I've asked her to keep an eye out, but there's been nothing available since the start of the year. She tells me she has no idea or control over what the distributor sends the store. I probably should stop in at the counter when I go to the range, "just in case" what I'm looking for arrived. But honestly I don't see paying $800 for a Glock 48 MOS either.