I've got a few of those Music Matters 45 RPM albums, still sealed. It was an impulse buy. I was thinking maybe it's time to sell. I checked eBay, and some of them sell for a lot of money, especially the ones on SRX vinyl, of which I only just found out about it yesterday.
It's hard to imagine that after decades there are still developments in vinyl composition that surpass the existing formulas, but I could be just talking nonsense, and the SRX vinyl is amazing.