I really don't mind climbing 7000 steps to high hrothgar, but it would be nice to have a quick way down. Skiing has been part of Norse culture for thousands of years. For those who enjoy cross country skiing, it would also be a quicker way to traverse those snowy areas. Superior than a horse, since wolves wont eat your skis.
The easiest way to clim down is to wall walk. Just hug the cliffside and you can easily walk down in seconds. It takes a little practise, but it works!:)
Also a nice way get past areas with many high lvl mobs;)