But also, Kickstart/Workbench 2.0 was a million miles better than 1.3, and it opened access to a lot of very cool software. Even though the A1200 and A4000 got KS/WB 3.0, most new software remained compatible with 2.0, and only used 3.0's APIs for bonus functionality... the big leap was from 1.3 to 2.0
(of course, if you were purely game-brained, you'd probably be complaining that your A500+ or A600 didn't run KS1.3... bleh, you had enough RAM to softkick it if you wanted)
Commodore actually did release an official KS2.0x ROM upgrade for the A500.
It had other improvements than just support for the AGA chipset's video modes. "Datatypes" were pretty neat. Thanks to it, the Amiga got PNG support in all web browsers before many other platforms got it at all.