This is kind of an interesting bit of data. I moved from the state with the second greatest disparity between high and low points (between Mount Whitney and Badwater in Death Valley–only Alaska is higher, because of Denali) to the one with the least.
But I was surprised to see that several states rival it, including Delaware and DC (which isn’t really a state–I also have a little trouble believing that the elevation of the Potomac in the district is only one foot above sea level). Louisiana is pretty flat as well. But Florida is striking to me because it’s so big, so the fact that it has so little variation in altitude is all the more remarkable. And depressing, to someone for whom (like me) mountains almost define scenery.
[Update a few minutes later]
As someone in comments notes, there are some people (like those wheelchair bound) who prefer it flat for obvious reasons. I had never considered this before, but Patricia mentioned to me that she knew people who had been brought up in New York who were actually afraid to drive on hills (a concept totally bizarre to me, but then, I have my own phobias). So I guess that a place like Florida would actually appeal to them. But I suspect that most people who like Florida don’t do so for its flatness, but because there are a lot of other things they like about it (year-round warm weather, golfing, boating) and are simply indifferent to whether or not the terrain has any relief.