If we count specialized shoes, then I think it's about a 15 pairs. That does include a pair of waterproof felt-soled fly fishing boots, waterproof and insulated muck boots, safety-toed boots, Olympic weightlifting shoes, motorcycle boots, and slippers.
For regular wear I've just got two pairs of brown leather dress shoes, one black pair, one pair of chukkas, and two pairs of sneakers. Then I've got a handful of other shoes that I thought I'd like more than I did. Some day I'll eBay all that stuff.