As it turns out, any money you save on a generic PSU purchase will likely cost you more in the long run.
The money I saved buying a generic PSU, I spent buying a midrange UPS. Come on, any benefit that expensive PSU is supposed to bring you will likely be negated by bad power from the wall. Think of the PSU as a bullet-proof vest, and the UPS as an armored car. I would feel more secure inside an armored car without a bullet-proof vest, than wearing a bullet-proof vest outside an armored car.