Genso Suikoden: Tsumugareshi Hyakunen no Toki, which came out in 2012 but I got it in late 2015. I've also spent a good deal of money on various incarnations of Beatmania IIDX since then at arcades.
Edit: Actually I stand corrected, I bought Contra ReBirth and Castlevania: The Adventure ReBirth last year on WiiWare before the service went down.