I missed the majority of Atlus's marquee ps2 titles like, Nocturne, Digital Devil Saga 1 + 2. I really want to play these games as I'm a RPG fan and I've heard that they among the best in the ps2 library, however, the prices for these are insane. And they are virtually impossible to find as well. Are these games worth their price? Or should I just stick with Persona 3 and Devil Summoner, which are still widely available at retailers and online.