My largest complaint about the A2000 is that it included the same 68000-8 processor clocked at 7.1MHz as the A500 and A1000. It would have been advantageous to have included a 68000-16 processor clocked at 14.2MHz for the more strenuous workloads that A2000 users tended to perform.
Yeah, for those users, Amiga offered the A2000 with an accelerator, and called it the A2500. You probably recall.
It might have also discouraged programming that relied on a 7.1MHz clock.
That's why they didn't do that. They wanted to maintain the library of software that would run on the A500. Without that, the A500 would have been a sad joke. At $600 as a package with a TV encoder, it was cheaper than most accelerators. You couldn't expect people to ever add anything but a memory upgrade.
I had a friend with an AdSpeed accelerator module (68000@14) for his A2000 and it made a significant difference. After spending considerably more for an A3000-16, I ended up regretting the decision given the costs versus the benefits.
That difference is minuscule compared to having an '020, let alone an '030.