After I returned my pre-ordered XS gold (just didn't like the color), I ordered a Silver 64GB MAX on the apple website yesterday to pick up right after work. Then my husband who didn't pre-order when I did my gold, decided he wanted the new phone, so we went to the Verizon store last night and he got the SG 256 Max for himself. And A whole lot of stuff for his new MAX. I've never owned a larger phone before. Didn't think I'd like it, but I do.
Anyway the point is, that you can still get them in the stores.