After having the system now for almost 2 weeks, playing games in 3D is akin to playing games in HD to me. Like when you got your first real taste of gaming in HD for a good period of time, then you go and game on an SD television...it's extremely hard to go back. I feel that way with the 3D in these 3DS games. I've been lucky to not have any adverse affects from the 3D from the get go, so after all this playing I've become even more acclimated to 3D. If I start up a game with the 3D off and start playing it, I immediately feel like "Man, somethings missing..." then BOOM, I see the 3D is switched off and am greeted immediately with what I've come to expect from that game.
It's funny because the games themselves don't drop in visual quality or anything, but if a game is 3D enabled (besides the AR games) I need to have it on. Has anybody else come to this conclusion or feel similar after playing with the system for decent amount of time?