I have the sp-101 7.62z51Import problems since they were Russian-made. I don't think any have been imported in over a decade (I might be wrong about the time period).
Also, the influx of cheaply made AK-style autoloaders from Turkey and some US companies sufficed for many new buyers. If you notice, many will say they're a Saiga clone (which they are not in material and workmanship).
Saigas are still out there on the secondary market and command higher prices, but not many people who have them wish to part with them.
I also have a Saiga 7.62 x 39 that is excellent.