As most of you know, I'm still shopping. I'm curious about all rubber tracks, and how long they last, versus steel tracks with rubber pads. Its seems to me that the steel tracks would last longer, and you couldn't replace individual links if you had too, instead of the entire track. But perhaps they are harder on the rollers and sprockets? Since I'm pretty sure I'm going to buy used, there are a lot of options around the same price, and I want something that I can test the waters with without being socked for another few grand for new tracks in a month.