Xenoblade Chronicles - Version Help!

[Formalhaut]

So Xenoblade Chronicles is a game that's been recommended to me and seems like it ticks all the boxes: interesting world, exploration, game mechanics. After I finally commit myself to finishing Tales of Xillia, this'll probably be my next JRPG I'm thinking of picking up.

My sole problem is: the original version on Wii, or the 3DS remake? Is there any difference between the two? Will I find the smaller screen of the 3DS irritating?

Any opinions and thoughts on this would be appreciated!

EDIT: So it turns out the 3DS version is actually a 'New Nintendo 3DS' exclusive. I only have the original 3DS. Thanks Nintendo.

And the original version on the Wii has like, crazy price figures. What's up with that?