You can easily wait some time before changing the kickstart. I've been using the 3.0 and I never had any serious problems. In my opinion you should save your money and try to get your hands on atleast a memory upgrade or better yet an accelerator card instead. Lets face it: The a1200 is a great machine, the 68020 IS NOT a good cpu.
I never really understod why commodore chose the 68020 for the a1200 instead of the much more powerfull 68030. Sure it would have made the computer a bit more expensive, but the games and apps it would have been able to run...Wow. For 1992 standards it would probably be like getting a PS2/3
