I've been going back and forth with the go/no go decision on clipless myself. The safety reason is the one thing that interests me once, of course, you get past the initial clip/unclip learning curve. There have been several times with my platforms where my foot got knocked off the pedal and caught me off guard. It's not the best feeling when a car's whizzing by you at 60 mph. On the other hand, outside of this reason I'm totally comfortable and happy with platforms. I'll probably end up going clipless once I meet my 2012 mileage goal but I sometimes wander if it's really worth the trouble.