Rich;
Always count on Stu to give you good advice with internet references to boot.
I will tell you that I had a Catalina 22 for over 6 years and wanted to upgrade.
I happened to randomly find a 1977 Catalina 30 for sale at a dealer in the area. The boat had been sitting on its cradle for almost 2 years and the price had gone from $19,000 to $12,500. The owner had done a survey and they let me look through it. Since everything was original, the survey pointed out issues with hoses reaching their end life, single clamps as opposed to double clamps. Sails were original, there was some water saturation to top deck core which came about because the stanchions, cleats, etc were no longer sealed to the deck.
I ended up getting the boat for about $9,000, replaced the rudder for about $1,400 including labor, plunked her in the water and motored her 5 hours home. Talk about trial by fire. After another $5,000 in wiring, LED lights, engine panels, AC/DC panels, hoses, through hulls, toilets, etc. I am pretty happy with the boat.
She is still a 35 year old boat. I am sure there is compression post problems and I KNOW the plywood between the keel and the hull is probably rotted. The sails are starting to reach the end of the line, the life lines are stretched out and I would like to replace the shrouds, and chain plates...but is it worth it. I'm starting to get the itch to go bigger....probably best to let the next guy figure it out.
I'm only saying that because Dan M makes a good point. If you're reasonably versed in repairs and maintainence and the survey is going to tell you things about an old boat, is it worth it? I would think that if the boat is at least sea worthy (floats) then everything else should fall in place...IF you look at it as buying a 20-35 year vehicle AND understand that it will be far from perfect.
The only thing that scared me was the engine, if this had been bad, I knew it was my major weakness and I would have been screwed. I lucked out...and that is probably not the best way to buy a boat...via luck!
Good luck!
Chris
I also check Yachtworld all the time. Not saying you should buy your boat there, but it gives you a good idea of price by year and usually includes lots of pictures.