Glad I wasn't the only one wondering that... Are they actually very significant to people in the game industry?

As a couple of people have said: Picking just one is hard. My favorite is probably the Baten Kaitos: Eternal Wings and the Lost Ocean intro. It was effectively a pretty character introduction, but it was one of the first cg movies I'd seen in a video game (not too common on GC). After that, I'd probably go for Kingdom Hearts.

Your chances of finding a new copy of a Pokemon title below $10.00 are minuscule, but if you succeed, please tell me! That would be wonderful.

Anyway, Amazon isn't a bad place to start. Pokemon White is about $20.00 used. If you don't mind getting Y instead of X, that's about 25 (not including shipping on those). I didn't see a much better price than what you listed for any of the others though.

As for your last question: Why lower the price if they keep selling? The price is probably higher on Heart Gold because it's not being printed much anymore, if at all, and people are still looking for it. White and White 2 released a year and 2 years later, so there will be more copies in circulation. That's my guess, at least.

Pillars of Eternity, Zelda Wii U, Majora's Mask 3D, and Yoshi's Woolly World... I feel like I'm forgetting another one, but ah well. My backlog's big enough anyway.

Yoshi's Woolly World looks utterly delightful, but aside from that, nothing really jumps out at me. Ah, can't forget Majora's Mask either, my bad!

YEEEEEEEEEEEAAAAAAAAAH!!! Those two titles alone have me pretty excited for 2015, but the new Xenoblade is what really takes the cake (really hoping it isn't delayed). I'll admit I'm one of many who was disappointed with 2014, largely because I was hoping to see more from the newest gen than we've really gotten at this point (although Mario Kart blew me away, not gonna lie).

I definitely cheated on some of the older Pokemon games when I got an Action Replay. I think it screwed up my Ruby version at some point though. Aside from that, nothing really comes to mind, and now I think I appreciate the challenge of a game much more than I did when I was younger.

Also I didn't realize you could catch legendaries without a master ball when I was little, so there was that.

I enjoy picking up games several years too late, so I'll probably be getting Mario & Luigi: Partners in Time before anything else. As for 2015 titles, probably Majora's Mask 3DS. Haven't actually played much of the original despite it sitting on my virtual console, but the new release looks lovely.

Sad to say I have the game still sitting un-played on a shelf at home. All this talk about it is making me want to finally open it up though, so that might just be the first thing I do...

Probably Tales of Graces for me right now. Been enjoying the epilogue sections quite a bit.