Before this severe decline in the economy I shopped long and hard for a TL140 in 2006 and the best price I could find for a low hour machine was only 6 or 7 k off of what I paid. So at that time there value was holding up well. This year with all the repo's the same machine was 10K plus off of my new price.I would assume all machines wheeled or tracked are down in resale. If you actually take the time too figure the actual cost of a tired machine and compare it too a tracked machine and tack into account the added ability too work longer and the time saved on common jobs there is no difference. If you are just going too haul material from point A too point B then a wheeled machine is the best choice. If you use your machine for actual excavating then the tracked machine will always win. Of course that is under the conditions I work in and will not always hold true nation wide.