Do not get sold on buying a new computer just because industry experts say
that they are obsolete after 4 years. Many computer models can be updated
and upgraded by simply replacing specific parts and installing new software.
If you cannot decide her you need to buy or repair, here's the basic rule
of thumb to guide you in making that decision: Purchase a new computer if
the replacement parts or software necessary to bring it up to date cost more
than 50% of its original purchase price.
If your company (business) buys a new computer model, it should consider
selling the old one. There are secondary markets who export old computers
to Third World countries. The average resale price of a 3-year old system
is usually 10% to 15% of the original purchase price.