90% are DSW athletic shoes that run about $60/pair. I wear them for maybe 6-9 months and then donate them, mostly because I feel strongly that after enough mileage, a shoe loses it's stability and support. Most people don't realize the difference a brand new pair of the exact same shoes feel, compared to the ones you just wore every day for the last year. You'd be amazed at just how bad the latter feel, but you've grown accustomed to them.
The other 10% are dressier sneakers/casual shoes for going out. A few pairs of dress shoes thrown in.