I wouldn't go back. I have fond memories of the good old days, but nowadays I have a range of expanded Amiga-models with expansions I couldn't afford back then. Amiga hardware (both new and 2nd hand) is relatively expensive nowadays, but even so it is much more affordable than it was back then (counting in inflation and such).
The current Amiga, when it wouldn't have died as a mainstream machine, would more or less be like a current day pc, running some kind of Unix variant such as BSD or Linux. And that is already what we have.
So I look back with a warm, fuzzy feeling and enjoy the benefits of today.