Does anyone have good experience buying used things from craigslist?

As what I would call an up-and-coming videophile, I bought a 36" HDTV on Craigslist in excellent working condition for $50. I also have gotten a several high-quality computer monitors and a home theater system there too. Yes the price is right, but it sounds like you have some form of OCD. I always clean the items off before I use them. A mild soapy water solution should be fine.