I'm still at a loss of what to get, none have really caught my eye...I think the range is pretty dire tbh.
M.C said they had some really good games but that link game is the only one that catches my eye, but thats ok i can still buy regular ds games like I have been I already have warioware, megaman zx and megaman zero collection and gonna buy chrono trigger ds.
These are the 3DS games I've played that are very much worth their asking price:
Fire Emblem: Awakening (best 3DS game, without question)
Luigi's Mansion: Dark Moon
A Link Between Worlds
Animal Crossing: A New Leaf
Mario Kart 7
Professor Layton and the Miracle Mask
Super Mario 3D Land (on part with Mario 64, IMO)
Donkey Kong Country Returns 3D
Resident Evil: Revelations
Shin Megami Tensei IV (this one is hard, beware)
Theatrhythm Final Fantasy (my favorite music based game)
Games I haven't played but hear are amazing:
The various fighting games on the system
Etrian Odyssey games
Monster Hunter 3 ulatimate (I loved it on Wii U, no clue how it plays on 3DS)
Paper Mario: Sticker Star
Kid Icarus Uprising
Zero Escape: Virtue’s Last Reward
Phoenix Wright: Ace Attorney - Dual Destinies
Rune Factory IV
If I were to recommend any game on the 3DS, it would be Fire Emblem: Awakening. It's long, there's a ton of content, the story is fantastic, and more importantly the actual gameplay is amazing. It's not just my favorite 3DS game, it's probably in my top 5 games of all time.