Historically, it's a nice little bonus that I've bought into a few times but in practice, I've never really been able to enjoy portable games on a large screen like I thought I would. Console games on the go seem to fare better.

A perhipheral would have sold quite a bit, especially with how much streaming and uploading have become.

I think it would have helped a bit

And lower 3DS sales as well

Uhhhhh.....

He said built in not optional purchase

what if i told you it already was

Too many images?  

Not the same question remotely.  Ignoring the fact that the Wii U already does this.  They are both home consoles, and playing one on the other is nothing more than a space saving convenience.  Had the Wii U been able to play 3DS cartridges, it would have opened the Wii U up with additional current gen software.  Not just previous gen games (even though I mention DS since it could be done using the same cartridge port, so why not?).  Think of the first 6 months of 2013 for Wii U coming out of it's first holiday.  There was no big, highly rated releases for Wii U in the first half of 2013 until Lego City, Need for Speed Most Wanted, and Monster Hunter 3 Ultimate came out in March.  And then pretty much drought again until the end of the summer while Ubisoft held back Rayman Legends for simultaneous release.  During that time, maybe Wii U owners who may or may not have had a 3DS could have been playing Fire Emblem: Awakening, Etrian Odyssey IV:  Legends of the Titan, Luigi's Mansion:  Dark Moon, Animal Crossing:  New Leaf, & Mario & Luigi:  Dream Team on their TVs.  If they weren't already 3DS owners, this is bonus software sales for Nintendo.  And in that event, maybe they like these games so much, they do start to crave to play them on the go in their portable nature.  Then, they go out and buy a 3DS, and that's bonus hardware sales for Nintendo as well.

Anyway, it's a What If scenario.  It's all hypothetical and purely intended for a fun discussion.

Definitively wouldve giving me a longer play time with the system and I definitely would've bought some 3DS games