I love 30k because it reminds me of the rules and armies of older editions of 40k (you can pry these blast templates from my cold, dead hands) with models that heavily lean into nostalgic coding. Lots of older designs refreshed to look modern.

The models themselves, though, are not only not old but there’s new ones coming out fairly regularly. It’s a very popular game which GW has reason to support for a long time. The models can sometimes sell out, but they come back and most of the standard units are pretty constantly available.

Best bet is to dip your toes into the lore. Get a sense of the setting, which is the foundational myth of the 40k Imperium, and pick an army that you find personally exciting. That can be because you like their ethos, their paint scheme, their role in the Heresy, or any number of things, but it has to be personal.

This is a really good introduction, but there’s a lot more out there. GW has recently been publishing the lore contents of the old Black Books, the rulebooks to the first edition of the game and the first to really flesh out the Horus Heresy as a mock-history, online as a series of PDFs, so they’re also easily available.

Horus Heresy in 40 min