Like the DS before it, the 3DS is becoming one of my favorite platforms. Now that we are several years into its life, it has a pretty great selection of first and third-party games. There are enough now that I have fallen behind on getting them. Fortunately, this week's deal at Best Buy is there for me. Until this Friday ("while supplies last"), select 3DS games will be available in a buy one, get one free deal.
I highly recommend Bravely Default for those who have even slight interest in JRPGs, but although I love Tomodachi Life, I think it works better as a download than in cartridge form. Personally, I have my eye on a Kirby/Zelda combo. This deal is available through BestBuy.com as well as in physical stores. Some of the titles were out of stock online, but have been restocked for now. Currently, A Link Between Worlds is only available in-store.