What you see as amazing, I see as a huge burden on Samsung pushing out speedy updates.
Well, it's true that I'm not someone who relies on updates to make me happy. I buy devices for what they do now, not what they might or might not do in the future.
Especially since OS version numbers don't tell the whole story.
For example, a lot of my iOS devices are a couple of years old, and even though they have the latest OS version number, they cannot run the latest cool iOS stuff.
OTOH, I still have Android tablets that I've left on 2.3 simply because I like the way they work under it. Since I can usually run the latest version of major apps that I rely on, and I can install a custom launcher, I'm cool.
The upshot is, as long as my devices do what I bought them for, I'm good