I actually miss the OLD VN's they had better art and better variety. I use to purchase them on jlist and ebay. other than the sci fi fantasy ones Virgin Roster and Amorous Professor Cherry was one of my favs.
They still make good ones. Even nowadays, there are lots of good VNs that get made with sexy stuff.
They don't get translated into English much, however, because people in Anglophone countries mostly just pirate the stuff. And the state of American erotic VNs is simply atrocious. We have maybe a few games like The Last Sovereign, Being a Dik, GGGB, etc. that are up to the standard of Japanese VNs. And even in those cases, the production values on Japanese games are just *better*. Better art, better dialogue, better story, and the best ones even get made into proper shows.
It's a shame, but Americans just are inimical to paying for porn enough to support a VN market like Japan has, IMO.