I wouldn't blame scalpers entirely -- you can blame me also lol. I searched for available Network titles and pulled out a half dozen or so I that looked interesting to me, that I hadn't yet bought. Figured it might be the last chance and most were still in stock at Rarewaves last night so I put a large batch together to buy.
These aren't titles probably being pressed en masse like standard studio releases to begin with, so stocks are likely pretty low in general. You get a bunch of people like us buying titles and that would probably deplete most regular stocks at some of these sites also.
What you wonder is whether there are stashes in warehouses yet to be distributed -- or if they stopped manufacturing discs already or a while ago. That would play into how available (or not) these titles will be.
BTW Rarewaves still does have a lot of Network titles still in stock (albeit "limited stock"). The Sophia Loren/Elizabeth Taylor disc I bought last night is gone now, but there's still a lot of titles left:
https://www.rarewaves.com/collections/network
Blu-Rays:
https://www.rarewaves.com/collection...t_type=Blu-ray