I totally agree, and I do when I actually write stuff. Even edging and then cumming, especially as a couple exploring how it changes things, is a great start.
But we tend to encourage going a bit longer at least for a couple of reasons. Firstly there is a ‘denial high’ sensation that many get which tends to kick in after a day or two at least – so short periods of edging don’t get you there.
Secondly, the fantasy of long term denial is just hotter – so for captions etc that’s where they tend to go.
But yes, absolutely, shorter, ‘small’ edging is wonderful too, and besides just being really hot and exciting, the main benefit is definitely that it builds up to bigger and better orgasms as you say.