well, you guys have to remember that the new age of programming has dramatically changed over those 6 years. Now that we can emulate the PSX to near perfection, i think it wouldn't be hard to do the same for ps2. we may not have to wait 6 years, but maybe two or three for a decent one. i wouldn't be surprised if bleem! (god help them) or psxemupro comes out with the first one. but imo, i would get the real thing. it's much worth it. you get better sound, video, and you don't have to wait years later for an emulator. also, you'd have to buy a dvd-rom in order to play the games anyway, cause in time, all the ps2 games will be in dvd format.
one last note, about that psx emulator in the ps2; i wonder if sony will let vgs in on that...