Some Gateway stuff is still out there unopened
RetroManCave did an unboxing of a Gateway CRT last week (I'm a patron so saw it before the public release yesterday) on his channel so there are some unopened stuff out there - here's at the point showing the classic cow box with an unusual for them black crt https://www.youtube.com/watch?v=TCQuUwHH45w&t=969
I do remember Gateway back in the 90's - was working in local government back then & Gateway was out supplier for a few years so saw hundreds of those machines. Some of their tower cases had an interesting design where you could convert to a desktop simply by moving the logo - there was no difference in the design between the two other than the logo