I would rather get a pair of ks3.1 roms + an updated workbench. Unless you run some games/software that has compitability issues with 3.x?
I personally swapped my a500 kick1.3 roms with some 2.x and i would say that 95% of my games works just fine, with the exception of some very few titles.
The increased funcionality of wb2.x was definitely worth the very small sacrifice in compitability in my opinion.
