Maybe @oreofox is talking about splat books and not adventures?Curious. For pretty much the first two years, I almost exclusively used 1e adventures and setting material in 5e. And I found it exceptionally easy to convert. I could even do it on the fly. So I’m curious to know what your hurdles were.
I find it odd that so many people don't want to reach out to new players.
I find it odd that so many people don't want to reach out to new players.
The primary audiences for a luxury hobby are the ones with little to no disposable income? Interesting business model; not sure you could get a loan for that, though.
Have you looked at Expanded Monster Manual on DM Guild? It is 3rd party, but it's the MM2 WotC should have made. It expands on the core monsters with hundreds of variants, really good stuff. There's a sequel now that does the same thing with Volo and Mordenkainen monsters. More powerful/alternate versions of the the official ones. It's pretty fantastic and should scratch your monster itch.
Let's face it, if you're over 40 you're not in anyone's target audience, other than sellers of cars, ED drugs, and hemorrhoid cream.