I'm a player who fell in love with the sound of my 1970 Ludwig Downbeat after buying it to be my "beater kit" that I would take places I didn't want to risk taking the DWs to. I have now explored just about all sizes and eras of vintage drums, having bought and sold TONS over the past 7 years or so. The 3-ply Ludwigs still do it for me, so I'm sticking with those, and I'm keeping my Hollywood, Downbeat, and Jazzette kits for gigging. I've sold off my round badges, the DWs, all the Rogers kits, and I'm sticking to what I love, use, and know how to get the most out of.
As for snares, I tend to prefer modern models, just for the snappiness that they have. I do have some "collector" pieces I picked up along the way that I see no reason to sell (they take up very little room, after all), but 18 snares seems a good amount to hold at. Sheesh...I remember back to when I had finally bought my 10th snare, and I thought to myself, "now I'm in the double digits--I must have a hoarding problem!" But, the truth is I use them all at least a few times a year, and it's worth it to me to hold onto them. I could see myself adding a couple more snares, no problem, but I'm very satisfied with my diverse selection as it is.
I'm on the lookout for some Camcos, but not in a hurry, and certainly not looking to pay full price for something I'm going to keep for about 6 months to experiment with to see what the hubbub is all about. Other than that, I might dabble with purchasing a few kits/snares/cymbals to fix up and sell to students, but my days of buying/selling with the intent to explore are pretty much over. The season of life declares it's time to put more focus on my family, at least for the moment.