By that logic stuff like Bomberman would have sold a million units as well, since there wasn't much to play. Nintendo's marketing of the game resonated with the casual market which is why it did so well ( I agree the game sucks tho).
...We literally had a Direct last week showcasing games we will have for Q1 and Q2 of this year. We know stuff like Bayo 3, MP 4, Fire Emblem and Pokemon are coming in the future as well. How does any of this make it seem like Nintendo is just going to make a future thats just about Labo and casual experiences? You can choose to ignore that stuff...(I personally won't be buying Labo, but I know kids and some adults will like it). Nintendo has multiple dev teams, some can work on casual experiences while most of the others work on more core experiences.
I just listed the price for the repairs. You're not going to be buying Labo so ofc you won't be spending $20 on the repairs.... For those who enjoyed the kits, they will surely be paying the repairs if it gets damaged. Compared to other similar builder types like legos, other cardboard projects, etc $20 is a pretty cheap replacement. I agree Nintendo eshop sales suck the majority of the time. Wish they were as good as PSN or XBL =/