Where do you live?
Here in the DFW area, it's not tough at all. Not nearly as easy as it used to be, granted, but if you seek, you can still definitely find.
Hell, last time out, I found the Bud Freeman Stere*O*Craft side in nice condition for $7.98. I've also found buttloads of Brazillian (as in from Brazil) LPs for $3.98 each, or something like that. Like I said, I usally find something of merit.
It runs in cycles, sure, and if you're only looking for a certain niche of product like 1st pressing BNs or something, yeah, that stuff is not going to be there. But otherwise, there's still plenty of stuff out there on the shelves, at least around here.