Here is a brilliant commentary on an ad for a 1988 Bridgestone MB-4. $200 is probably a little high but to call it a Walmart quality bike is just ignorant. http://austin.craigslist.org/bik/137261255.html
Since it will probably be deleted soon, here is the text.
COME ON PEOPLE, 200 FOR A WAL-MART LEVEL BIKE IS RIDICULOUS. SELL FOR WHAT THINGS ARE WORTH PLEASE! STOP TRYING TO MAKE MONEY OFF YOUR CRAP.

If anyone is interested, here is the link to the bike.
http://austin.craigslist.org/bik/137159269.html