Maybe 10 yrs or so. I am in my mid/low 40's and hoping to do more extensive cruises when our kids are in college, which is another 9 to 10 yrs. Perhaps purchasing a larger and more of a offshore design. That's the plan but money, children's college, health, etc... will play a factor into this.
Our current sailboat will outlast our plans.
S2 11.0A 36'