Eventually I started using clipless pedals, and I used them for years. Eventually, I went back to rat-traps with clips and straps on the fixed-gear bikes. As I got into the daily commuting, I graduated to flat, bmx-style platform pedals. Pretty much, full circle.
I use the bmx platforms for every ride, now, with the exception of "serious" mountain bike rides. I still like to have the solid attachment to the pedals that the clipless pedals afford when bouncing down a rough trail. That said, though, I have done quite a bit of rough riding on the platforms, these last couple of years.
I miss some of the marketing gimmicks from the early days of mountain biking. The SR Low-Fat pedal, for instance, came in a milk carton...low-fat
That was the ride which turned me into a Mountain Biker, rather than a guy who rode a mountain bike. I have since branched out in my bicycling interests, but mountain bikes still light my fire.
Now, I have a little collection of vintage mtb pedals on my bikes: Suntour XC Pros, Shimano Deore bear-traps, etc. I'm looking for some original Low-Fats to go with them. I just wish I could find one of the milk carton boxes...