I collect selfbows, primarily. For me a well made selfbow out of a beautiful wood is irresistible. Most of my collection is from John Strunk, but I also have bows from Dean Torges, bless him, JD Jones, Gerald Welch, Gordon (if you know selfbows you know who that is) and the list goes on from there.
I have several glass bows too from some of the guru level bowyers who've been making bows for 30 years or more. Tom Parsons and Jerry Brumm are at the top of that list.
Bow collecting is a passion for me. I don't really collect anymore. I'm pretty happy with my collection as it is, but every now and then I'll see a yew or osage or vine maple selfbow on a forum that celebrates selfbows and I start to pine, and plot.