Also consider how supply and demand works. It’s not really linear.
If there are 2 lever guns coming into the market every day and 2 people buying, things hold steady. Prices are MSRP or whatever the prevailing going rate on the used market is.
If there’s 3 a day coming into the market and only 1 person a day buying, it very quickly becomes a glut. Prices fall. These things sit, are seen to sit, and prices must fall to inspire anyone to buy the excess. Pretty soon there are thousands sitting in pawnshops, gun stores, on Gunbroker… and nobody is snapping them up. They’re old, outmoded, not chambered in 6.5 Creedmoor, etc. They become even harder to sell because everyone “knows” they’re not too desirable and not worth much. Articles get written and YouTube videos made to lionize the “classic,” (while the authors really prefer their 6.5CM or 223 for daily use.)
Suddenly a bunch of new gun owners come into the market and buy up the existing supply. Covid, gun ban fears, funny money, whatever. Now there’s no glut, there are few available. The sellers perceive this and prices rise sharply. Even if there are 5 coming onto the market a day, if there are 6 people looking to buy, very quickly there are going to be a pool of frustrated would-be levergun owners who can’t find product and will gladly pay a higher price. Prices rise.
Now consider that all of a sudden we had supply go from (figuratively) our 2 lever guns a day to 1 a day at best, and our demand go from 1-3 buyers a day to 6+…. Prices will rise dramatically, quite quickly, and only fall very slowly as supply catches up.