My personal opinion is that people make too big a deal about how great clipless pedals are. I tried Look Keo's for a year on my road bike. Now I have Shimano SPD's on it. I like the SPD's much better. But I still have platform pedals on my tourer and mountain bike. I don't notice much of a letdown in performance when I go to the platforms.

I know, I know. Others will likely strongly disagree. I'm not saying I'm right and they're wrong. I'm just stating what I've found to seem true for me.