Usually, the general rule of thumb is that the better the neighborhood a thrift store is in, the higher likelihood you'll come across something good. In this case, most of the people around here are middle class, which in this case translates to good stuff popping up now and then, and rightfully so. Haven't paid much attention to the clothing, but you can come across some very good condition electronics for prices generally a bit higher than goodwill, but a lot more likely to be cleaner.