Gaming is generally one of the cheapest hobbies to have. Even on the hardcore PC side with monster rigs, it still can typically come out way cheaper over a multi-year period than, say, skiing. But $3.50/hr is a lot for gaming, and a lot for BotW when it's on the Wii U too... BotW is probably worth it but I'll wait. :)
(One example, I got Dark Souls for $5 and have 100 hours on it, that's 5 cents per hour. Sure I didn't get it when it first came out (otherwise it would have been more, though not that much more -- but at the same time I may also have put more time into it with more active PvP) but I didn't need to, I had other stuff to play. I've got quite a backlog, or things to buy to add to the backlog when they're on sale, of amazing games to play that I don't need to play the latest thing at full price. Or a more recent example, I spent $15 helping back Yooka-Laylee two years ago, and it took me 23 hours to 100% it, so 65 cents per hour. Suppose it was $60, though, that's still only $2.60/hr.)
But bringing it back to the main point of the thread, which isn't cost, what's Nintendo going to do next? They have a ton of unused/underutilized IP, they can't make AAA content on a similar schedule to the rest of the industry, and it's not because their offerings are just that much better. Additionally when people can have 100+ hours of fun with the launch title, why are they going to buy other games when they come out? The Wii was notorious for having a very low bought-games-per-console figure, even though there were several great games for it. I can't imagine many third parties looking at the Switch as anything but a dumping ground (when the added dev cost is low) for stuff they already put on other platforms. In a few years everyone will have a mobile phone more powerful anyway so maybe it won't be much work at all.