Same. I wasn't really part of the community until early 2015-ish, which was right around the time that chyros was publishing his first videos. Of those, the one which had *by far* the most views was his review of his ridiculously pristine mint KB-101A.
After that, I and everyone else on the internet decided they simply
had to have blue Alps and the prices skyrocketed. I remember when all the old-timers here and on GH were noting that the spike in prices was absurd; when mechanical keyboards were still a niche fad a nice blue Alps board could be had in the sub-$100 range. Now they go for 3-4 times that amount.
I remember some particularly famous auctions from late 2015/early 2016 where Blue Alps boards went for in excess of $500 on eBay, primarily to wealthy Korean collectors.
I came slightly too late to have known anything but hyper-inflated Blue Alps prices, but I saw the Chyros Effect firsthand on the Model F market late in 2015 after he released the review of his F-122 battleship. I grabbed one right after watching that video for the (in retrospect) fair price of $94, which we will probably not see again in our lifetimes. It used to be that F-122s were pretty common on eBay and went for around $100; now even grime and junk infested boards won't go for less than $200 and they've become quite rare.
It's crazy how market demand seems to always be driven by his videos.