NX game price if the library is unified?

[OneTwoThree]

Please, can someone explain to me what's exciting about a "unified library". Nintendo never had a problem supporting 3DS, because handheld games are cheap to make: smaller, less ambitous, less cutting edge technically. The platform they struggled making content for is Wii U. So if that's the problem a unified library is supposed to fix, it can only mean we're getting more handheld quality games for the next home console. Yaay?

I don't even get what's in it for Nintendo. This industry has always been about software sales, the hardware being just a vehicle. So in the future they won't sell 1x Mario Land + 1x Mario Bros to you, but 1x Universal Mario. That's half the software sales. Yay?

Then Nintendo has always argued that they prefer tailor-making games to the strengths of each system. Scratch that, too.

Really, I'm puzzled. But I am puzzled about most of what Nintendo is doing recently.
Slightly off-topic, anybody care to hear what IMO is the one big mistake they made with Wii U, which led to all the other issues we always talk about?

It's the one year headstart. Iwata panicked and preponed the launch. As a result they didn't have a system seller, no decent launch lineup, 3rd parties didn't have time to prepare anything and decided to wait instead. Nintendo caught 3rd parties one year before they were ready to transition to the next gen, so there was no chance of receiving crucial multiplatform titles. Miyamoto's ideas were still tech demos - many still not released today, some of them became the anemic joke that is Nintendoland. So as Nintendo's own sparse lineup bombed and 3rd parties waited before even starting any projects, Wii U was done within a few months. The headstart was an awful, awful decision.

So here we are, Nintendo makes DLC figurines, announces F2P smartphone games, covers up the most barren release schedule ever with re-releases, NX looks like a cost-cutting measure... and you're excited about that?