I forgot to add, I've got a set of Speedplay pedals and cleats / shoes too. They're wonderful for actual riding, being comfortable and easy to clip into. I just can't get over how horrible they are to walk in. Clomping around the house, and out to the garage is almost enough to drive me bonkers. Any sort of mid ride stop, or heaven forbid walking up a hill is torture.

Maybe I could live with all that if walkable shoes and cleats rode any worse, or had any downsides, but I just don't see it.