A lot of people can't afford a $20k toy. It's just a fact, there's always going to be a bit of a classist element to these conversations.
You gotta read the room, overly flexing—or telling people to stop whining so you can enjoy your purchase—isn't going to go over well.
But I think what's mostly going on here isn't jealousy honestly. People wanted this package to be awesome. They wanted something to lust after, even if it wasn't really affordable or practical.
When a new exotic comes out most people don't root for it to be ugly even though they won't buy it, they want something beautiful to dream about. Teenagers want to put posters on their walls. When I was a kid it was the Testarossa everyone had tacked up in their room.
My personal read is that the negative energy mostly comes from this package being kind of half-assed and not very attractive. There's no art on the front of the cabinet and the sides of the head are just a bunch of text. The backglass is a whatever collage of movie assets that don't match in style. The 'exclusive' topper being sold as being compatible with the other versions of the game is whatever, but it's another sign the package isn't all that.
There's an LCD screen and it feels somewhat pointless, it just shows some basic text for what to shoot at in a simple ruleset. Any owner will stop looking at it after a week, they won't need it.
It's just not that special feeling, even if the playfield is hopefully fun to play. I really and truly think people would be much less negative if this was amazing looking, drool worthy, and sold out in minutes. The price is too much, but it's very much "too much for what this is".