Go find a nice, high-end shoe store that has a specialist in shoe fitting and gait analysis (NOT/NOT a podiatrist!!) come in periodically and evaluate people's feet and gait and give recommendations. (If you're in DC or MN, pm me and I'll tell you where, otherwise get on the phone) and find out why you're going through shoes so fast. Because you shouldn't be. He'll suggest some brands and types of shoes that will help mitigate that -- and any other foot/leg/back problems you have. They will not cost $800, but they will last and last and last. Go buy those, either in-store or on eBay. If you really hate to shop and your feet stay the same size, buy 3-4 pairs and keep them in your closet, either on rotation or as replacements when it's time to get rid of the current pair.