I need to go back and finish Xenoblade. I played through the first 25-30 hours, but it unfortunately released during a time that was really busy at work, and I wasn't really able to play any games at all for 2-3 months following that initial start. This has unfortunately been a trend with JRPGs this generation...
Games I need to finish up:
Radiant Historia (I might just restart since I think I stopped 4-5 hours in)
Legend of Heroes: Trails in the Sky (played the first 15 hours or so)
Xenoblade Chronicles
Tales of Graces F (struggling through this one. 15 hours in)
Valkyria Chronicles (I would probably have to restart at this point, it has been so long)
Games I need to clear out of my backlog:
SMT: Strange Journey
Infinite Space
Dragon Quest VI and IX
The Last Remnant
Nier
Final Fantasy XIII-2 (not in a huge rush)
Atelier Meruru
Lost Odyssey
Blue Dragon
Resonance of Fate
The Last Story
Valkyria Chronicles 2
... And probably a few others I am forgetting about.
Yet I still felt that it was a good idea to start, and play through Final Fantasy Tactics again a few months back :/
EDIT: My wrpg backlog isn't much better, but I typically finish those once I start. I think the major offender is Fallout New Vegas. I sort of lost interest trying to grind out side quests 35 hours into the game. I should just spend the 5-8 hours it would take to wrap up the main quest and move onto the DLC.
I have this same problem. Here's my backlog, only including rpgs:
Xbox 360
Arcania: Gothic 4
Divinity 2: Dragon Knight Saga (Maybe halfway through the game.)
Star Ocean: TLH (On disc 2, don't remember anything about the game.)
3DS
Tales of the Abyss 3d (Played about 8 hours.)
GBA
Fire Emblem: The Sacred Stones (Completed some battles.)
PC (lol!)
Anachronox (Not played.)
Arcanum: Of Steamworks and Magick Obscura (Played this several times, never played 'till the end.)
Avadon: The Black Fortress (Near the final battles.)
Baldur's Gate II Complete Edition (Never played the expansion.)
Bastion (Not played.)
Dark Messiah Might & Magic (RPG or not? Not played.)
Darksiders II (RPG or not? Not played.)
Disciples II: Gallean's Return (Not played.)
Disciples II: Rise of the Elves (Not played.)
Divine Divinity (Played it for an hour.)
The Elder Scrolls III: Morrowind GOTY Edition (Never played this version.)
The Elder Scrolls V: Skyrim (Intend to finish next year.)
Fallout 2 (I need to finish up my replay, but I stopped because of new releases.)
Heroes of Might & Magic V (Not played.)
Heroes of Might & Magic V: Hammers of Fate (Not played.)
Heroes of Might & Magic V: Tribes of the East (Not played.)
Icewind Dale 2 Complete (Not played.)
Jade Empire (Never finished.)
Kingdoms of Amalur: Reckoning (Completed some quests in the 1st region.)
Lionheart: The Legacy of the Crusader (Not played.)
Neverwinter Nights 2: Storm of Zehir (Currently playing.)
Planescape: Torment (Doing my first ever mage playthrough.)
Septerra Core (Not played.)
The Temple of Elemental Evil (Not played.)
Titan Quest Gold (Very slow progress.)
The Witcher 2: Assassins of Kings (Not completed because of combat.)
Ys Origin (Very slow progress.)
Ys: Oath in Felghana (Not played.)
iOS
Crimson Gem Saga (Haven't played for a long while.)
NDS
Dragon Quest IX (Progressing slowly.)
Luminous Arc (Not played.)
Sands of Destruction (Not played.)
PS1
Final Fantasy VIII (Doing a rerun that I need to finish.)
Front Mission III (Never finished.)
Grandia (Making slow progress.)
Vagrant Story (Making slow progress.)
Wild ARMs 2 (Making slow progress.)
PS2
Shadow Hearts: From the New World (Not played.)
Deus Ex (Not played this version.)
PS3
Borderlands: GOTY (Making slow progress.)
Dark Souls (Not sure if I'll ever finish because of Blight Town.)
Rainbow Moon (Making slow progress.)
Records of Agarest War (Not played.)
Tales of Graces f (Doing end game stuff.)
Yakuza 4 (Making slow progress.)
PSP
Legend of Heroes: Trails in the Sky (Put on hold for another game.)
Tactics Ogre: Let Us Cling Together (Not played this version.)
Valkyrie Profile: Lenneth (Currently playing.)
Wild Arms FX (Not played.)
Wii
Xenoblade Chronicles (Stopped playing, but I don't remember why.)
My problem is that despite my backlog, I go back and beat older games that I have already beaten some other time. So I have 55 unbeaten rpgs in my backlog and that number will only grow over time with lots of exciting games coming up. Kickstarter isn't helping either.