Oh, to be sure, the store is chock full of cheap "Made in China" stuff. But for me, that quality is more than adequate for a lot of my needs. If I were running a construction business, I surely wouldn't buy my power tools there, but for modeling I find a great many of the tools and parts I need can be found there at great prices. As others have said, a lot of money can be saved when you're ok with running across the occasional lemon where inexpensive tools are concerned.
One thing I couldn't find was an in-line air pressure regulator and moisture trap that was designed for lower pressures. They had them on all their hobby compressors, but I didn't see any replacement parts anywhere.