I also do the plastic kids sled think. Good for trudging or skiing with light to moderate loads and easy to throw on the back when you can't drag it.

I can see the runner sled being better for longer trips with heavier loads, or when the snow isn't so deep and powdery but you would still rather drag something than carry it; like a canvas tent and portable wood stove, and food for a week or two, or Bambi's mom. Even in deep snow with as small a group as 2 or 3 the snow might get trampled enough for a runner sled in the rear and it can be as much work breaking the trail as hauling the sled. A long tobogan might work better in most conditions but can't be carried. A runner sled might also work better on a ski trail or skidoo trail. I should also mention that it is an option to place Rudolfe in front of the sled rather than on it.

I enjoy a good trudge and always wanted to try the canvas tent and wood stove thing.