Never thought that Glocks and polymer SIGs could be out of stock in my area (Midwest), but they are, lol.

On the other hand, there are some nice all-metal compact-to-full size guns still available for the same price as in March... I bought an almost new CZ P-01 Omega for $375 around April.

Last week there was even a S&W manufactured PPK/S-1 not moving off the shelf for $200 less than online.

Plenty of nice revolvers available, too.
(not necessarily cheap, but available)

As for .38 spl ammo, I found a single box of LRN two weeks ago at a local farm supply store, that's it!