It's really nice reading the range of responses here.
I have about twelve pairs of around-town shoes -- not including gear but including crossover types like snow boots and Chacos, which I wear casually because it's practical for my lifestyle. I guess that puts me on the minimal end -- which is remarkable to me. My husband has about half as many shoes as I do, including his gear, and gives me a bit of grief about my "collection". He's Canadian and I'm a New Englander with a Quaker background, so maybe that informs our attitudes towards consumption. His wardrobe is a lot less varied than mine -- his pants are one length, his shorts are another; working in a technical field he rarely, if ever, has to dress up. On top of all that he has easy-to-fit feet. Aside from one pair of hiking boots, I've never seen him get rid of a pair of shoes out of discomfort.
I've become pretty picky about what I put on my feet, after dealing with sports-related iliotibial band syndrome in my twenties, which only resolved after I switched to primarily zero-drop and barefoot/minimalist shoes as often as possible. I try a lot of shoes, and keep very few of them. This winter, I've been living in a pair of wide-width Blundstones and alternating with a pair of Ahnu insulated hikers. I can't wait to wear lighter-weight, thinner-soled shoes and sandals, but it looks like it's going to be a while before the weather allows for that. I've already tried and rejected about 6 pairs of casual S/S shoes and sandals. If I don't shop ahead, I won't end up adding anything new for the season. Honestly, I have shoe style holes I've identified and would like to fill, but it takes me such a long time. Even straightforward things like casual sneakers can take a lot of misses before I find a hit, and sometimes I just get tired of shopping (first world problem!). I think I need about 3 or 4 more pairs of shoes to really hit my sweet spot, style-wise. But I think somewhere around 18 or 20 pairs would start to feel like too many.
To be clear, I don't see anything inherently bad about having a lot of shoes, or a lot of anything for that matter. I just don't think I'd feel good about it for myself. I don't have a collector personality type. Even things I'm pretty passionate about, like books or outdoor gear, I tend to buy when it's necessary and borrow when it's not. What I do have is a researcher personality type, and I'm happier to browse and test ad infinitum, collecting data without making any impulse purchases.