I think once a boat gets over 10 years, its all a question of maintenance and refits, if you start with a quality boat. The good thing is that the quality boat is most likely to have owners who do maintain them properly ($$$). Sabre is a quality boat, and I'd buy one for my type of use in a sec, but I don't think they are designed for offshore cruising, for example lacking carrying capacity. I consider the IPs too slow for use as a sailboat (this comment should get some action...) but I put more of a premium on sailing performance than others may chose to.
For your needs I'd recommend the Bristol 38.8. Yachtworld has seven on the East Coast. Pay a premium for one with newer systems. Here's an example - check the equipment list http://yachtworld.com/core/listing/b...ick&searchtype