Rubber or rubber clad steel tracks are more for protecting asphalt for those users that must travel on both. They are more expensive to purchase and more expensive per hour to run. Tracks like the soilid deal are good for mud and turf situations, however any debris that gets inside must almost always be removed by hand. Think sticks and stones , epecially if you must make tight turns. The Tracks Plus are a good track for home users as they are resonable and offer good floatation, and are about as easy on lawns as your going to get in a steel track do to the large shoe area and light weight. They will not work in wet snow however. (packs inside)
We also sell the Mclaren line and they are a heavier track that will counter weight your machine more which adds stability. The diamond line has a double cross bar on each shoe and shed debris well and offer great traction, they are hard on turf do to the agressive profile.
McLaren also has tracks with bolt on shoes that have more pad surface to them. Again they are heavier, but you can choose either rubber or steel bolt on pads
There are some good pictures of the McLaren diamond tracks here.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&rd=1&item=150272217884&ssPageName=STRK:MESE:IT
and some hi res photos of the tracks plus here
http://www.skidsteer.ca/tracks.html
Hope that helps
Ken