Men who own multiple pairs of shoes are not necessarily fashionistas who have a compulsive need to accessorize their outfits. A practical reason is that each pair of shoes you own will not wear out as quickly if they're worn on a rotating basis. If anything, sneakers should wear out faster than any leather-soled shoe, but I'll come back to them later. Let's get down to basics:
There are numerous variations of black shoes, from lace-ups to loafers, Bluchers to semi-brogues. I would start with any of the lace-ups first.
If you wear sneakers like I do, they likely will be replaced more often than leather shoes. I try to have at least two pair of sneakers (one for running/aerobics, one for basketball/tennis/whatever). If you're on a budget, I wouldn't get too much into the minutia of having a pair of sneakers for a specific sport, nor would I spend more than $50 per pair. For sports that require a spiked shoe (golf, baseball, football, soccer, etc.) be sure you expect to wear them enough wear to justify the investment.
Once the basics are in place, you can methodically branch out to other shoe styles. Choosing shoes that can be resoled also will save on compulsive purchases in the long run. Comfort is always key. Rubber or Vibram soles help reduce shock when walking for extended periods.
Your first step to a sound wardrobe starts with your shoes, so keep it simple. The rest will follow.