Just my $0.02, but I think some brewers have priced themselves out of the barrel-aged beer market, and it's leading to stores stocking fewer of them.
I get that a lot of time, effort, etc. goes into these beers, but you have to be delusional to think someone is going to be $20-30 for a 12 ounce or 500mL bottle of beer. There is a cooler of singles at my LLS, most are 12 ounce or 500mL beers, and almost all of them are $20+. That is preposterous for beer. Plenty of 750mL barrel aged bottles are $30+ now. It doesn't cost 2-3x as much to make those beers now as it did a couple of years ago. It's unvarnished greed.
I do love a good saison though. I had a great one of Logsdon back in the fall that I highly recommend tracking down. It was like $16 for a 4-pack of pints.