If it were up to me, I’d be very okay with renting until retirement, then moving to a very low-cost area and buying a mobile home or small shack for under $100K, cash. Unfortunately, my DH isn’t really on board with this plan, so we keep looking at lots of crappy homes that are still very overpriced.
Bubba, it might be a good idea to get off the boat and rent something a bit larger and more comfortable. It’s got to be tough living on a boat for that long. It sounds like you don’t have other family members to worry about (or you are a real trooper if you’ve lived on a boat with a family for that long!), so you could easily rent a guest house or small apartment near the beach. Lots of these places are pretty affordable, actually.