Why do threads like this make people so mad?
Because generally they can achieve nothing, and consequently seem intended only to irritate.
We have no idea what anyone on this forum does outside of their time here. The excited posters talking about their Watches could be CEOs of charities or enterprises dedicated to making life better for the vulnerable or poor. They could be people who have been saving for this for months, and who will have no other "treats" in their life. They might be people who do not have a lot more in their life "to be excited about".
I really don't care if people get super excited about technology, but threads like this make me stop and think for a minute.
Thinking does nothing to help the "less fortunate" (for lack of a better term). Unless and until someone cancels their order and donates or uses the money in pursuit of a charitable cause, it doesn't achieve anything at all, and neither does trying to guilt trip people for being excited about money they've already decided to spend.
Frankly, I'm delighted to see people so excited about their Watches. If someone is going to spend money on something, I would definitely prefer it meant something to them than be something they didn't care about.
The money's going to be spent either way, so why shouldn't people get as much value and enjoyment out of it as possible?