I think it's an interesting idea, and sometimes it works, as in the case you've described or Jim Galli's Deep Springs College workshop, and sometimes it's a little slow going, as in the case of rexp's loaner MF camera, which was plagued by shipping issues and lukewarm response at first, though I think it's working now.

Maybe it's best doing it case-by-case as it's happened, so when someone has a worthy project, APUGgers will step up to the plate to fill the need.