At this stage in the game it's probably best to wait for next gen and save the 100. If Jrpg's are what you like, the PS3 has been the king of this genre this gen.
Ni No Kuni is the best jrpg this gen IMO. Valkyria Chronicles is a close second and then Demon Soul's IMO.
Then you have the Tales of series which is pretty much exclusive to PS3 lately with Graces F, Tales of Xillia 1 and 2, Tales of Symphonia HD collection. The Tales of Vesperia fan translation is 96% done as well.
http://talesofvesperia.net/
There is now heavy support from SE with FF 13 series, FF14, Star Ocean, Kingdom Hearts 1.5 exclusive (chances of an inevitable 2.5 release being exclusive which will lead nicely into PS4 KH3)
NIS America has also been great this gen with the Atelier series, Disgaea
series, Ar Tonelico, (very underrated jrpg series) and others.
Oh and along with Disgaea being more of an SRPG, Record of Agarest is also good in that regard as well. That's another full trilogy that you'll only find on PS3.
