I don't think it's really new, but the prices do continue to climb. It is supply and demand. The "reissues" you mentioned are (mostly) high quality, numbered limited editions. Some are not so popular and if they are still readily available they will sell at MSRP. If they sold out within days or weeks of their release, good luck finding one at its original MSRP.
Same thing happens with Record Stored Day releases. If there are only 2,000 copies of something popular, you'll see them at double their price within hours of them going on sale. Go look at prices for the RSD 2020 Black Friday version of Let It Bleed.
Same thing happens with Record Stored Day releases. If there are only 2,000 copies of something popular, you'll see them at double their price within hours of them going on sale. Go look at prices for the RSD 2020 Black Friday version of Let It Bleed.