I have a Dreamcast mostly for the near arcade-perfect Naomi ports (as well as some Neo, CPS-3 and CPS-2 ports). The DC has less memory than the Naomi, so some games had to be adjusted to account for that, plus you're not playing it on an arcade monitor with true arcade controls. However, given the price differential for a Naomi setup vs a Dreamcast, I just can't justify getting the Naomi. My DC (I actually have two consoles, one as a spare) with 48 games, many of them among the more expensive DC titles, two Agetec joysticks, light gun and other accessories cost me about the same as a Naomi with Capcom I/O, one game and a supergun would cost. There are some Naomi games that weren't ported to the DC, as others have mentioned, but there are enough that were to keep me happy.