Amiga 3000 or Upgraded Amiga 1200 (ECS vs AGA) --- Which should I use for daily use?

[McVenco]

I agree with Vulture: just expand the A1200 with a PPC card to get every possible modern bit out of it, and leave the A3000 as it is, with a big harddisk and WHDLoad for the games. Since it's got the onboard SD/FF you don't need any expansions to play those games on a modern monitor.

I'm planning to do the same kind of thing myself, but with an A4000 instead of an A1200...

[McVenco]

Can't play AGA games on it, though...

That ain't so bad. Just install those few AGA games on the A4000 with WHDLoad. The majority of the games is OCS/ECS anyway (personally, the only AGA game that I play more than once a year is Slamtilt)