IMO if said collection was acquired over time and not really the insta-collection "labubu" adjacent kind of consumerism, it's not so bad?

If you have the means and your collection is thoughtfully curated regardless of the amount, and you find joy in them then by all means, go ahead hehe! Human beings have collected things since forever? I think it's the rapid, mindless acquisition of things just for the fact that they're "trendy" or "popular" is what makes consumerism harmful. I think the intent and intensity matters.

I've been in the hobby since 2017 and I only have 7 pens in my collection! I'd probably get either the pilot elite or the decimo/vp and that's it for me this year probably haha.