I browse occasionally, seeing if something grabs my attention. But actively searching for?
Every couple of months, I'll do a search for an old RadioShack instrument mic, 33-3032. It looks like it may have been made by Sennheiser, but thats not important. I worked for RS for a very long time, and have a sweet spot for the company. I had stopped playing many years before working there, and wasn't really playing when we closed all the company stores, so I wasn't really thinking about those mics at the time, when I could have gotten them really cheap.
In conversation with one of the leading sound guys in the area, and a dear friend, that mic came up as something he had for a backup. He felt it performed reasonably well for a tom mic.
I remembered them, and kicked myself for not scooping any up during the store closings.
I dont "need" any. I'd just like to have a couple in the mic box, just because. I saw one recently sold on Reverb. Saw one on CL, the guy wasn't willing to ship, as far away as I was to him. I'll keep looking, every now and again. Now it's a mission, lol.