If you bought a PS3 for big JRPG titles you are simply out of luck so far this gen. There is little to no emphasis on big name RPG titles on PS3. There are a few reasons for this. Many JRPG titles we saw last gen were cheaper to develop with most of the budget going into writing a strong story and decent looking characters. Now with this gen we see development costs sky rocket to the point where for many companies it is no longer profitable to make exclusive games all around, you consider how small the JRPG market is outside of Final Fantasy and you'll see what I mean and why so many developers are going to Wii or going multiplat.
All is not lost if you're looking for exclusive RPGs on PS3 though, there is still Disgaea 3, Valkyria Chronicles, White Knight Chronicles, and Final Fantasy Versus XIII. There are also unannounced projects including a rumored new PS3 game from Atlus (probably my favorite Japanese developer). If that's not enough there are still the now multiplat titles FFXIII and Eternal Sonata.
Now all this was pretty much to explain where JRPGs on PS3 stand (JRPGs have a different situation on PSP). It's not bad if you actually take the time to look at it but it's nothing comparable to PS1 or PS2's line-up and that is due to the ever changing market and demographic.
What is Sony doing then? What is with the lack of RPGs in general? Why are they betraying their once, arguably, biggest market?
The answer can be seen clearly in what was shown off at E3 yesterday and Sony's recent public event and conferences. The market in which they capitalized on with PS1 and 2 has changed from a market of gamers who play JRPGs, Platformers, and quirky action adventures to the shooter crowd. Games like Killzone 2 and Resistance 2 show this off. Big name shooters are selling and games like Folklore are not. This is not to say that Sony has abandoned core gamers at all, what I liked about their show yesterday was the amount of games that would only appeal to core gamers.
We saw games like inFamous, Siren, and Valkyria Chronicles. We also saw games for everyone like Flower and LBP. Despite what negative media and forumites are saying, Sony is offering a diverse lineup for really any gamer. Their new strategy seems to be: Build up on 1st/2nd party games for PS3, bolster PSP with killer Western titles and core appealing Eastern titles, and starting a trend to make PSN or any "arcade" games more than just a quick chuckle (Siren, R&C). They also want to expand upon the PSP/PS3 functionality.
Will some fans feel betrayed? Of course, we're just going to hear about it more because we're on a gaming site. The new strategy has it's flaws but this is probably going to be the climate for all consoles come next gen. Almost every 3rd party game will be multiplat and there will be an immense amount of 1st and 2nd party exclusives on store shelves and on stores like PSN and XBLA. It's the future of the industry.