I'm not sure there is that much...
We always use to think so, but once we got the degrader software, there wasn't much that we couldn't run on our A1200's as long as we re-kicked 1.3 first
We have the great WHDLoad team for some banging-OCS/ECS-games...
And, we must turn the page of older Kickstart than 3.1 (or 3.9) too !
Why ? Because with my Blog, I'm talking with users every days, they think AmigaOS is becoming over the years too much complicated... So, only one Kick now, not more !