I've seen Taurus revolvers available at several retailers online all throughout the pandemic till this day and for a great price. There has never really been a shortage of them. I agree with you though, you are not going to find a comparable new or used aluminum or stainless framed S&W, Ruger, Kimber, or Colt for anywhere near the price if a Taurus. For whatever reason, they seem to be able to put their revolvers together without mucking anything up.
There are a few used and new polymer semiautos that can be obtained for not much more than a NIB Taurus. They have a better track record, warrenty, and are made by a more reputable company. The same can not be said when it comes to revolvers. An all stainless Taurus J frame for example goes for around $300, doesn't have a lock, and has 6 rounds. A Ruger or S&W J framish NIB will cost between $700-$1000 +/- and are only 5 rounders. Also keep in mind that Taurus revolvers frames are also forged and not casted which is impressive at their pricepoint.