In times like these .... with prices on Craig's List and e-bay seeming to be totally insane .... there is only one thing to do .....
SELL, SELL, SELL!!!
Or, some time in the not so distant future, you will be saying "gee, I could have gotten $X for my 25 year old bike". Just about 5 years ago they were plentiful at $10 to $25 a piece.
Unfortunately, when you are buying something to ride these prices are a nightmare. On the brighter side, there are some halfway decent new bikes selling relatively inexpensively if you know where to shop.