Timeshares...stay away.

Look at it this way. You are stuck with that one place, or you can "trade" for what's typically an inferior property elsewhere.

There is little or no quality control across the Interval (or similar) network.

You pay a weekly maintenance fee, which, with judicious use of points and benefits would cost as much or maybe more than booking a hotel on your own. And you don't need to put a large sum down for the privilege of joining a hotel rewards program.

You "own" nothing.

If you ever get an offer on a timeshare you might be lucky to receive 30 cents on the dollar.