Always a fan of minimum PAs myself except in the summer when flying in Alaska. Since a majority of the passengers were vacationers it was nice to point out geographic interest items like glaciers, mountain ranges, etc. On a clear day even the business travelers appreciated that.

You don't have to do 25 minutes on Mt. St. Helens (heard that once!). Just a simple "On the right a nice view of the Malaspina Glacier" suffices.