Isn't portability the whole point of a handheld console?
That's what I bought mine for (as well as my 3DS). You're going around in circles really. But I'll leave you to it.
People prefer exclusives to multi platform? Sales would suggest otherwise barring a few Nintendo franchises. I'd people wanted Grand Theft Auto, Call of Duty, Assassin's Creed, FIFA etc far more. Exclusivity doesn't drive most console sales. It may be a factor which sways you between one system or another if you are torn between the PS4 or XB1. But the majority of 8th gen hardware sales will be driven by multiplatform releases. Exclusives are much more of an after thought more the reserve of fans for bragging rights.