It's a reasonably good price and I'm considering buying it tonight because of the good price. I wouldn't be using it for 2 months, and I would want to know if it is DOA because after 30 days I can't return it to Newegg for a replacement. Note that I can't put it in a computer to check because I don't have a desktop, only a laptop at the moment.
Finally to the question: Is there any way to check if a PSU is DOA without hooking it up to a computer?
Edit: What's nice about the tester is that you can connect a variety of cables and you get voltage readouts for all the voltage rails. I have one and it's helped me ID some bad PSUs. The only bad thing about either method is that you don't get a test under load.