Two things are against buying an older fiberglass boat....age and a tight budget ! While old glass boats might be cheap or even free, they are costly and expensive to overhaul. Aluminum boats have very little wood which makes them much easier and less expensive to overhaul. Glass boats being heavier, give a smoother ride in choppy water but take more to to get them on plane. Have owned both in my 60 years of boat ownership, I have learned.....today I so I'd not even look at a glass boat anymore. Having rebuilt a couple wood Lyman boats, the all wood boat was easier and less costly than overhauling a glass boat. But in the overall scheme of things, the aluminum hull is easier to maintain, and overhaul and carries a much better resale value....consider an aluminum boat, more bang for your buck and easier to work on !!