I've played a lot of DBA over the years, and have 20mm armies that pre-date the current 'fad' for 15mm figures and armies. However you go with the flow, and so I've acquired a number of 15mm armies as well. But I went off the game a number of years ago, and I've never quite been sure why. Perhaps it was just that other interests overtook the DBA 'thing' because I was never inherently dissatisfied with DBA 2.2.
I couldn't resist the temptation to buy a copy of the new DBA 3.0 rules which I have been browsing through for a couple of weeks, although I am yet to play a game.
Here are a couple of interesting reviews that I thought worth sharing:
I must get a few games in soon.