A recurring question is whether speculation & other motivators can co-exist - in the same purchase, same product ux, etc.

I think they can!

One dumb example that came to mind: Phish posters, specifically Jim Pollock prints.

Fans arrive early to shows to buy these prints & go through the annoying experience of being at a Phish show w/ a poster tube.

Most people buying these prints do so out of fandom & show them off in their homes, offices, etc.

BUT, some folks end up selling them, and there's a decent secondary market for these posters.

https://www.ebay.com/sch/i.html?_nkw=Jim%20Pollock%20Phish%20Poster

IMO, financial gain is not a primary motivator for people buying these prints (there's much easier ways to make money!), but the opportunity for the price to appreciate may encourage more people to buy them and/or pay more for the prints, both of which grow revenue for these prints & expand the broader Phish economy.

Helping creators get paid onchain. Writer & artist.

It's still a very good one. 

It made me remember people who collect comic books. I didn't know that was a thing until this year. When the artist published the comic books, I don't think they imagined the comic books would be collected for reasons such as appreciation and profit.

Haha, there's probably WAY better examples, just one that came to mind on a run earlier lol