Do you guys realise that preorders / first week numbers for Labo have very little importance considering the kind of game Labo is ?
It is a new proposition, sure it can flop, but word of mouth is what will make/break the game fate.
Actually, first week performance does matter considering the vast majority of successful hits so far started off with 1M+ units in the first week ... (it's no different for the Switch so far with 4 of it's biggest titles opening with at least 1M units)
Labo looks like it won't even push a minimum of 500K+ in it's first week and the pricing for it sticks out like a sore thumb ... (only the variety kit is remotely of any relevance while the robot kit with a $20 higher MSRP than the average AAA game release just stings)
Yeah, but those four games you mentionned were sequels in well known series with massive fanbase. Fans knew what to expect and went in day one.
Labo is a totally new thing. New IP but not only that it is kind of a new genre. In addition, Labo main target are kids/casual gamers who are less likely to preorder videogame related products.
Again, it is totally possible for it to fail badly but I think we will have to wait for a few weeks after launch (maybe more) to conclude anything.