There are several important reasons to save old boats. 1. It is environmentally smart to "recycle" the materials salvaged boats are made from.
It damages the environment every time a tree is cut down, or a gallon of fiberglass resin is made in a factory in China. 2. It is fun to restore an old boat. 3.You learn from repairing old boats, a lot more than just cruising in one. 4. If you do find an old boat that is really a goner. there is a big market for the sails, the motors, the winches, ballast lead (.20 cents a ton as of October 16th, 2006) all the little pieces of hardware like bronze cabinet hinges, and all the other cool stuff.
Just have a look on E-bay to see what people are getting for salvaged gear! But back to the basics. It is FUN to find and save for whatever reason an old boat. There are a lot of POSITIVE things to think about.