Shoes? I've always had a weird thing with bags. Buy them all the time but rarely use them <-- this has got to be a subconscious need/desire/attainment sort of thing ... but, on the shoes, I think high heels can be a work of art, some anyway.
I could get into a more complicated explanation for it but it's nearly midnight and I can't be bothered. Ultimately it is an extension of the female instinctive desire to appear beautiful which is due to sexual selection pressures: "OMG what is he going to think of me if I wear this dress? Maybe these shoes will go OK with it. No, wait. These ones." It is kind of fascinating (in a good way) the range of outfits - of which shoes are only one part of a greater whole - which women adopt to be noticed.
I have a mini obsession with flat/low-heeled leather sandals (especially the Born/Born Concept brand) because they're comfortable and offer a simple beauty without being excessively girly or impractical. I despise high heels and most 'fashionable' shoe designs and have no use for those types of shoes. Sandals are my form of accessorizing (I rarely wear actual accessories or jewelery.)
I am a fan of wearing socks with sandals (comfortable!) which is apparently considered an unforgivable sin by some people.
My total shoe count is 1 pair of leather clogs, 1 pair of elastic sneakers, 1 pair of pool flip flops, and 3 pairs of leather sandals!