Given that the holiday season has started/is about to kick into full swing and thus answers to this question are not likely to change from this point forward this year, i'd like to ask: aside from the new stuff you bought this year, what did you replay, what old friends did you revisit, or what games did you play again and realize "i paid $50 for this?!?"

So far this year, i've replayed:
Fire Emblem Radiant Dawn
Sonic Adventure 2
No More Heroes 2
Metroid: Other M
Super Smash Bros Brawl (and i mean re-played. Lost my file and had to put it all back together)
F-Zero GX
Zelda: Wind Waker (currently playing, and likely to be the last before my Q4 run starts aside from a bit more F-Zero)

Shout it out, VGC

I revisited Mario 3 and A Link to the Past.

Played Demon's Souls before getting the ultimate omega game know as Dark Souls.

Xenogears
Uncharted 2
Portal 2
White Knight Chronicles

I started BioShock about a year ago but then just kind of let it go halfway through. I came back to it about a week ago but had completely forgotten the story, so I deleted my save and started from the beginning. So I guess that counts.

zelda tp
super paper mario
mario galaxy

I replayed Mass Effect 2 because I finally got the last DLC for it. Got into a Gundam mood, so replayed SD Gundam G Generation Wars. Also replayed Persona 3.

Final fantasy 1,2 and 3 so far, I'm on my 4th runthrough of playing all the numbered ones in order

Lara croft and the guardian of light, twice, just because me and my housemate both hold the opinion its the most fun co-op game out there (and we both like TR)

Golden axe (original) quite a few times, again a great 15 min co op for me and my house mate

Nier, cant replay that one enough, so many cool endings and such an emotive story

Nethack (ancient pc dungeon crawler, and SO hard) and its still impossible

Plus I played ar tonelico qoga, tactics ogre 'cling together' and Atelier Totori in english, having already played them in japanese previously. Its been a pretty bad year for new games imo so the old ones make up oiver 80% of my total playing.

I replayed Okami on PS2, which I wanted to 100%. I also replayed a little bit of Warriors Orochi 2 on PS2, since I want to 100% it as well.

Mass Effect 2
Final Fantasy Tactics
Pilot Wings 64
Sonic Adventure 2 and Streets of Rage