Well, our major non-cruise vacations have been land tours with Globus -- we go from stop to stop, just spend the day sitting on a bus instead of wandering around a luxury ship! We use those tours to get to places we can't get to from a cruise ship like:
DJEEMA EL FNA IN MARAKESH
We did a 5 day independent pre cruise in Iceland once
And we sometimes take city breaks for a few days, like New Orleans or Boston:
Years ago our hobby was showing bulldogs. We would pack ourselves, our daughter, and three bulldogs in to a VW camper van and spend the weekend camping at a fairgrounds someplace in California. Not our thing today. If there is not a Main Dining Room and a room steward, we don't go.