Why you should recycle that piece of junk because it is cheaper to simply buy a new one. Or why do we think computers are different from VCRs, DVD players or anything else we choose to replace rather than repair, etc. because it is cheaper?
I will add one caveat - it will require time (AKA $'s) to move your data from the old computer to the new one. However, when you consider the better performance, it is money well spent.
