Schmuck :
Is there a problem with buying refurbished computers?
In my opinion there isn't a problem with buying refurbished as long as you do your own due diligence.
Was the computer or part refurbished by a known entity with a good reputation?
Do they have a warranty on their product and work?
I personally like to buy refurbished in certain instances. If I need a number of lower end to moderate workstation computers, I often look over refurbished deals, In many cases I can find what I need inexpensively. It also saves me alot of time over building them myself.
I also look at newer laptops especially if the model is still in production. In alot of cases you have computer that was returned to the manufacturer for various minor reasons. It may be software, cosmetic blemishes or screen issues. I will happily take a $250 discount on a laptop because the first person to buy it returned it due to scratches on the case or dead pixels. A screen swap by the manufacturer means it is as good or better than new.
You are however taking a minor gamble as it may have had numerous issues some of which may not have been fixed or an intermittent or rare problem that you may be able to duplicate regularly but the maker could not.
I personally am in a somewhat unusual situation as I work for a local computer store and see the issues that computers get returned for. In most cases the hardware is fine on returns.