Points made by Thomas-282729 and others are valid for consideration. You have to apply all of these through a filter of sense. The other point that was good is "does this get me an extra row per page".

The the other thing that has not been mentioned is those of us stuck on the low end of the spectrum. Mobile. We have less space than a postage stamp and processors with less power than a one horse sleigh. If we are not engineered to the max the user will throw the application (and the device) in the trash. We will not have a billion rows in any table, that is true. We don't have a billion of anything. We do have compatibility constraints as often we are at the mercy of "how much code do you write for Sync Services".

Scalability is a big consideration at both ends of the spectrum and in the middle too.