Like I said, things that sold better than expected.

I wouldn't be so sure about that, they also do it with games sometimes. Now talking about switch, why was there even limited preorders? it doesn't make sense because you open preorders so you can know exactly how big the demand is for ur system, so nintendo are either too incompetent or are trying to purposefully create product scarcity. Feel free to believe either of those or something else

True.  They eventually announced the numbers shortly after, anyway.  ~915K sold through.  It'll probably be at 1M sold through, soon.  Not the greatest, but much better than the other two headsets.  Sales should also pick up nicely if Sony drops the price to $299 later this year.

I cant think of any Nintendo games that had extreme shortages.

Im pretty sure all consoles have a limit on the amount of pre-orders.

Its seems like Nintendo shipped 1 million or so day 1, roughly the same amount as PS4/XBO so Sony/Microsoft must either be incompetent or tried to create product scarcity as well.

Because Nintendo can only make and ship a limited quantity of Switch units? They certainly can't make and ship an unlimited quantity.

Dont' bother. People don't understand that.

For an unlimited supply to be available at launch, you need to do one of two things.

1. Delay release so that you can stockpile up a huge amount. But why would you do that. Why not sell them as they are available and ship as available. Holding on to massive inventory is not good business.

2. Buy/rent more production lines/wharehouses/whatever you call them, to make a higher quanitity of said device in shorter time. Risky. If the device ends up not being a sought after item, then you are stuck with a ton of product as well as wharebouses you purchased or are on lease for that are sitting around doing nothing after launch. 

good for nintendo