Math, you are preaching to a preacher. I have been in the computer industry for almost 15 years now. I do realize depreciation and how useless computers become. But I am not comparing that in the least. Simply from one year to next things get better in both industries. A 5 year old high end bike is now considered a low end bike. It may still work but it doesn't have the components. XT 5 years ago is now where Deore is. That all I was trying to say and most people can relate that kind of depreciation to computers which is why I used it....