Condition, Condition, Condition and Equipment
In real estate it's location, location, location, in boats, condition is everything. A well maintained 1980 is better than a poorly maintained 86. You didn't mention your location, but in my area (Northern CA) we have a choice between freshwater boats (Delta) and saltwater boats (SF Bay). Generally, the freshwater boats are in better condition.Educate yourself between cosmetic issues (weathered teak, surface damage to gelcoat) and big problems such as water-logged decks, major engine problems, etc. You'll also learn to spot the difference between deterioration and just dirty. Some otherwise well-maintained boats sit for a while before being sold and just need some TLD. Others have been truly neglected. The pressure hot water system should be in most of the boats in your age range, but it's probably only a few hundred to add. Try to find one with the shower option in the head. The shower isn't that great to use since the whole head gets wet, but the shower equipped boat has extra water tankage. A bigger expense is upgrading from an alcohol stove to propane, which will be about $1,300 on a do-it-yourself basis.Look for newer sails in good condition and a dodger in good condition. Both of these will cost $1,000's to replace. The same goes for roller furling if you want it. There is usually not that much price difference between a boat with good sails and one with poor sails. Don't put much extra value on a boat with "eight bags of sails", most are likely to be old and blown out. Check the web or your local sailmaker for prices on the sails you're likely to want and factor that into your purchase decision.LaDonna is right on about the engine. My 81 has the 5411, 2 cylinder diesel. I'd rather have the 3 cylinder, but the boat was in fantastic condition and a newer boat with the bigger engine would have been at least $5,000 more.Do some research on when Catalina made changes to the boat. In the late 70's the rudder was modified, etc. Check out the Catalina 30 National Association's web page and order the Tech Talk Manual written by Dick Dickens. It has a wealth of information on the C-30 and is indispensable to owners and prospective owners. It also lists the dates of the key changes.Good luck.