One reason this topic is so much repeated is because it is so typically misunderstood. Bike riders so often don't get what clipless pedal are all about.

Thing is, they're probably not necessary for the casual rider who uses his bike just to go to the market. But certainly the pro or enthusiast cyclist that rides for long distance or for many hours can absolutely benefit from having them.

While the debate rages on to whether they're more efficient or not (see out-of-saddle climbing), the one thing they do for sure is take your mind away from foot placement on the pedal. At least that much -- which means a lot over the distance -- is incontrovertible.