Persona 3 FES, and P4 are under 20 on amazon...
Should I get those two or Radiant Historia?
Caution, young one. You got pretty pissy with DDS' dungeon crawling.
Though, I think P3fes and P4 fix most of that, the story is infinitely better (arguably not on the fes part though). From everyone else: they'll probably say yes; I say yes, but with caution (I seem to be the only one here who rates the persona series as "above average"/10, unlike everyone elses "SUPERMAZINGFANTASTICO"/10).
I'm not sure how long the sale would last, but I think it's a deal of the day thing. I saw it via the news feed from RPGfan on facebook.
I tried my hand at SMT with strange journey and DDS1... wasn't my cup of tea so maybe I better slide on this