I will be digging your Ultimate Computer out of the dumpster in 7-8 years. It's not so ultimate. The ultimate computer will cost less than my car and research an upgrade itself automatically with micro/nanobot. Seven years ago my parents bought an average computer, a 433MHz Celeron with 10GB HD and 64MB RAM, for1300+$. Recently I've found faster computers than that thrown out. One being a 500MHz athlon. 18 months from now people will be throwing out 1GHz computers with 128MB RAM. If you go somewhere with a lot of rich or dumb people you might see much newer computers.
Buy a car. It'll last longer. New cars are made to last 10 years. Older Japanese cars before the mid 90s might last 15-20 years.
Or buy an acre for 2200$ and a trailer for another 3000$.