Haha, we're in the same boat. I played a total of three hours of Dark Cloud 2 yesterday. For some reason I picked it up again on Wednesday, and I've been having a blast. Honestly one of my favorite PS2 games of all time. There is just so much to do. You got Spheda, Monster Badges, fishing, Invention System, Photography Scoop system, Ridepod, weapon evolution, character building, support characters, and of course the amazing Georama system. And there is tons more. Not to mention top notch graphics, voice acting, and music.
I thought the original Dark Cloud was crap. I played it a little and just didn't enjoy myself, Georama was the only thing I liked about the original. Level 5 made a total 180 in the fun factor department with Dark Cloud 2, the game is just amazing. Yeah, the dungeons can suck at times, but I found tons of fun even in them. Getting Medal Badges for the different goals and such.
Bring on Dark Cloud 3 and Dragon Warrior VIII, they'll both be GOTY for whatever year they come out.