Should I buy a house or a boat?

I’ve always dreamed of living on a sailboat. I’m coming up on a point in my life where renting an apartment is no longer an appealing option for me, financially or otherwise. So I’m left with a dilemma. Do I follow my dream (as this may feasibly be the last time in my life I can do it—at least until retirement), or take the responsible path and buy a house?

Consider the following: a house/condo in the area in which I would be buying will more than likely appreciate in value. Whether it does or not, once I have to move, it wouldn’t be too difficult to rent out as a form of passive income. A sailboat will almost certainly depreciate, but the monthly payments/slip fees will be half (or less) than that of a mortgage.