I bought a lovely pair of ASICS when I was on week 4 of C25K and ran in nothing else until last year when I bought a second pair of the same. Now I always logged my runs once I had completed C25K using GoodRunGuide. The programme gives you the option to log and track your shoes which I did.
Total kilometres covered in 2011 100K (only part of the year)
" " " in 2012 375K (got my Garmin in Sept and stoped using GRG)
Total K's logged last year and this on Garmin another 200K's approx, divided between the two pairs, = 100K. Now added to that total is all the walking that I never log, probably double the distance.
So to sum up kilometres my trusty ASICS have covered would be about - well time I bought another new pair would you agree?
Do you keep track on the miles covered, they say you should replace every 500 miles!!!!