just to re-iterate and ad some words of caution to what others have said. I think the most important thing here is learning to discriminate junk from the rest. The problem with razors is that there are 1001 and 1 ways that a nice looking razor can be made useless or at least value-less. Like others said. Temper issues, cracks, warps, pitting, "mods", can all be deceptive and hard to spot, yet detrimental. so just take head and ask questions.

Example i recently bought a razor off the bay that the angle the shots were taken at belied the fact that infact it was much shorter than its original length. Fine for me to shave with, but certainly makes it less valueable.

my 2c