I have never used my points [YET] to travel outside of the Disney resorts, although, my good friend at work has used her points to do a week in Tennessee & last year she used them to stay in Colorado for a week; I know they went white water rafting & a lot of fun stuff.
If you stay for a week at any of the exchange hotels it’s usually around 160. You don’t HAVE to do it by night like Victoria such said. That’s more for little 3-4 nights stays at exchange locations. You are much better going by the week, or even better just going to WDW or DL.