I wear a lot of my favourites a lot less than I'd like, as they're all discontinued or, worse yet, "reformulated". I'd love to wear Oud Minerale at least once a week, but that bottle isn't going to last forever...
I own about 150 full bottles and TRY to wear everything. I look at my fragrance list a few times a week and pick a fragrance I haven’t worn in a while. I bet I would wear 120 of my FBs/year as well as a bunch of samples.
I have 20-ish fragrances that I should sell/trade, but they are inexpensive ones that wouldn’t be worth shipping. I will eventually give away/donate these. There are only a few bottles in my collection that I won’t wear at all and they are blind buys I can’t stand. Luckily there only a handful of those.
Well, I wear many but not on the same basis, ie some monthly, others once or twice a year. Vintage stuff I rarely if ever wear, but smell from time to time on skin or blotter, although I always find it a pity to waste precious fragrances on blotters.
You always have good ideas for debate/questions, Kosui!