The one good thing about people who don't know diddly about bike repair/maintenance is that sometimes they are sources of good bikes cheap. I've picked up a few entry and mid-level bikes for little or nothing because they wouldn't shift or the brakes didn't work and all they needed was cleaning, lube, adjustment and maybe a new cable or two. Found a 1990 Schwinn Caliente in excellent condition literally on a scrap metal heap last spring. Its only problem was that it needed new tires and some general cleaning and tuning. Less than $40 and a lazy afternoon later, it worked a treat and looked almost new except for a few specks in the chrome and some minor blemishes in the decals. Sold it for $125 but almost wish I had kept it.