Was 3D a bad decision for the 3DS?

[Mnementh]

sam987 said:
The 3D is an option: you can use it or not. Its not mandatory. Some people don't like it but the majority still like it.

From a gamers point of view every option is a good one, I agree. But 3D limits the 3DS in other areas (battery life and price), so offers it enough to make up for it?