Shin Megami Tensei: Devil Summoner: Raidou Kuzunoha vs. the Soulless Army Reprinted (Update 2: Raidou 2 REPRINTED on Amazon!)

[TheKoreanGuy]

I'm interested. I always wanted to get into the SMT series, but it feels like there's a lot of different games within the series. Where should I start?

Edit: Also, how much is the above game usually worth?