I hope not.
While AGA is great, OCS/ECS graphics can, likewise, be quite interesting.
If I get the chance to, I'll most definitely program for AGA as well as OCS/ECS.
Well, at least let the difference between AGA vs OCS/ECS is great and worth it. I just noticed majorty of the commercial (old) games with OCS/ECS vs their AGA version their graphics where not ALL THAT NOTICEABLE making it questionable why get an AGA game version.
Of course for a view exception, but right now in 2012...at least make the AGA graphics games NOTICEABLE in difference, quality and entertainment verses the OCS/ECS version or otherwise do not make AGA games period.
AS old an outdated AGA chipset is...it is a good improvement over OCS/ECS...it would be great to see games EXPLOIT it to the maximum instead of Amiga Demos who exploit it.