I took the week off. I was able to move my holidays.
I get up at 9 AM and the queues are under 100.
My hubby works in the evenings. So this works out great.

I've been playing since beta to 1.0
he was been playing since about 1.07.

We have seen login queues like this every expansion, this is nothing new. The same thing happens every time.
Should they spend $1+m on servers to handle an issue that will self-resolve in a few weeks' time?

There are 1,000 people playing and paying for 30 days and then they are gone not recurring income.

Like anything is a gamble. Do they spend millions on servers and are unable to recover the cost.
These are gaming PC they are high-end servers where the CPU costs somewhere around 50k and there are more than 1 on the server.
Then there are switches and additional network gear.

I don't mean to white night this. But I report directly to the CTO of a telco. So I know what it takes to run networks.