I would say that yes, it is worth it. I transferred from the DS Lite as well and didn't look back. I usually play with the 3D turned down pretty low, just basic enough to see the 3D but not give you a headache. The number one reason to switch would be the 3D only titles such as Animal Crossing New Leaf, Luigi's Mansion, and the Pokemon sequels coming out. If none of the 3D titles are that appealing to you right now then hold off, since the games are really the only thing you're missing out on anyway.