Originally Posted by
Mark Stone
What I'm going to start doing is walk with a new pair of shoes for 4 months, then start a new pair. I'll use both pairs until I feel a difference between the pairs (the older pair "dies") - at that time the older pair will become generic knock-around shoes and I'll use the newer pair exclusively for aerobic walking until the next 4 months pass. That seems to be an accepted tactic amongst all the walking websites and experts out there on the net
I loved my Asics when I first got them, but I like the New Balance just slightly more. I think NB fits my weird feets a little better.
At marathon events I've spoken to front runners who have 2 to 3 pairs of shoes. The 2 pair runners continually go back and forth during the week. They feel it gives the soles time to heal.

Those with 3 pairs reserve the one pair mainly for racing with only taking them out occasionally to keep them fresh.
Originally Posted by
canklecat
I used to walk more, mostly because it's compatible with photography, especially unplanned stuff like street/candid and found-object photography. But for several years after a car wreck I needed a cane to walk any distance. That tended to hinder spontaneous photography until I switched to lightweight P&S cameras that I could operate one-handed.
But for exercise and the sheer pleasure of moving I much prefer bicycling. Since resuming riding a few months ago I wonder why I waited so long to start again - other than that pesky poor balance and cane thing, which I suppose could have been resolved with a recumbent trike. Long walks felt more tiring than invigorating. Bicycling feels more invigorating, and I usually have a burst of energy after a relatively brief rest.
I still take lots of photos during bicycling ventures, but it's less compatible with street/candid snaps around the city. Great for my rural routes, though. I stop whenever something catches my eye, and ride alone so I'm not holding anyone up.
Walking is no where near as much enjoyment as biking and swimming is even less enjoyable, but the three comprise an Ironman triathlon so I have no choice but to walk and swim since additional Ironman tris will be in my future.