Is price a major factor in poor 3DS/Wii U sales compared to GBC/N64 & GBA/GC?

[Xenostar]

I think price is a major factor for Wii U's poor sales, last gen they placed themselves as the secondary console in a gamers life, but this gen its too highly priced for that.

Dont see it as a problem for 3DS tho, there are soo many skus of that and the lower end ones are very cheap.