Re: How fast do your shoes wear out?
I can't recommend strongly enough that you get fitted at a running store. Perhaps my lengthy story will help to illustrate why.
I started running a year ago (tomorrow is my 1-year "runniversary"!) and had worn out three pairs of shoes in just over 100 miles each by the first of the year. I'd cruise along feeling great until the shoes reached about the 100-mile mark and almost instantly be in agony. Each time, I was ready to quit running, and each time a new pair of shoes made it fun again.
By the third pair, I was totally ready to quit running because there was no way I could spend the kind of money it would take to replace shoes every 100 miles, but unwilling to do so without some serious investigation as to why I burned through shoes so quickly. The wear pattern on all three was very distinct - the sole was almost completely worn away under the ball of each foot in an almost-perfect circular pattern, but the rest of the sole looked almost new.
Before buying pair #4, I had the owner of the running store analyze my gait more carefully. I had been fitted for the other pairs by other clerks in the same store, all runners experienced at fitting shoes. The owner has an M.S. in exercise physiology and really took a lot of time with me. She determined that I had some serious gait issues. She had me try SuperFeet inserts and said that if they stopped working within about 5 runs to go to a podiatrist whom she recommended.
The SuperFeet were awesome for about 2 runs, so I quickly called the podiatrist. Also a runner, he determined that I had limited ankle strength and almost no ankle flexibility which was causing me to twist my feet every time I landed. He said I was closer than I realized to doing serious damage to my ankles and/or knees. He tweaked the SuperFeet a little and I've been doing PT for abour 6 weeks. The results have been amazing - almost like I'm learning to walk and run all over again, and I'm doing it without pain or strange wear patterns on my shoes.
From day one, the attitude of the both running store owner and the doctor has been to help me find a solution so that I can keep running.
I'm so fortunate to have found this store owner (and subsequently this doctor) and even more fortunate that I literally drive past both the store and the doctor's office on the way to and from work every day. But if they were both far away, the help I've gotten there is worth a very lengthy trip.
Good luck!! Eliz