I like to use every moment effectively, but I also don't like to switch hotels every day. I'd say in recent years, most trips involve us staying in one place for 3-4 days and doing a lot with each day. That gives us time to do a *lot*, both the well-known tourist attractions and more off-the-beaten-track experiences.

The only thing that forces us to stay a week in one place is the Marriott Travel Package. Our most recent destination for that was Barcelona, a town fully worthy of a week no matter how fast you move, how in-depth you want to go, or what your interests are. Although I've probably redeemed my final Travel Package, I'd go back to Barcelona for another 5-night Marriott/SPG stay.