Nintendo really should drop the 3DS price this year. It has a pretty amazing lineup after all is said and done for 2013 and it absolutely needs to catch fire this year. Drop the price to 130 or 140 (OG) and 160 or 170 (XL) coinciding with the Animal Crossing release and the 2013 lineup + price cut + Pokemon momentum could very well push it up to a pretty good level until the end of 2014 with only an ~okay lineup needed in that year.
Well, yes, a price cut would certainly help 3DS selling even more, since it has an already fantastic lineup filled with good / big games saleswise. Last year 3DS lacked continuity in significant releases and didn't have a strong release for the Holiday.
Most important releases in 2012
February: Resident Evil: Revelations - M&S at Olympic Games
March: Kid Icarus Uprising
May: Mario Tennis
July: KH3D
August: NSMB2
September: Angry Birds Trilogy
October: Layton
November: Paper Mario, Epic Mickey PoI
Most important releases in 2013 so far
February: Fire Emblem Awakening
March: Castlevania, Monster Hunter 3 Ultimate, Luigi's Mansion Dark Moon, Pokémon Mystery Dungeon
April: Lego City Undercover The Chase Begins
June: Animal Crossing New Leaf
Summer: Mario Golf, Mario & Luigi 4, DKCR3D
October: Pokémon X & Y
This lineup is already much better than 2012's and, above all, more costant: there are continously good releases with good or great potential. And we don't know about other Fall / Holiday games yet (aside from Nintendo, we can perfectly expect SA3 given the rumours and the next M&S given the...logic). It's a much better lineup, and just thanks to this the console will sell certainly better than last year (I think it'll have its best year in US too). If they cut the price too they'll have their best US year by far.