Thumbhole is AI master race!Having owned an AT, AX, and ATX, and with what used AT's are going for, I would be more inclined to get an ATX, than an AT, unless you absolutely have to have a thumbhole.
The AT will likely keep going up in price. The ATX will either stay lower where it’s been or climb up a bit. Really depends on the reviews coming out of the new ATXC platform
So far from what I’ve seen on the ATXC thread it doesn’t sound like much of an improvement over a decked out Gen 3 ATX