It may even make sense to stock your own spare parts, especially if you have several identical computers. Fixing a PC simply involves guessing which part is broken and replacing it. You keep trying until it works again. Finally, consider the kind of support you need. With computer prices so low, no computer dealer can afford to give you much free advice.
Many dealers also have limited knowledge of software.
So you may need to pay for installation and training. RTG can assist you with your PC purchase. For a fixed fee we can help you decide what equipment and programs you need for your application. Call for details. In January we discussed Softfile, RTG's personal notebook software.