Technology

As already said you just need to buy something explicitly listed as a monitor.

One thing you'll find is that at 55" with decent specs you'll be paying a significantly higher price than you could find a 4k TV. That's because good monitors of that size are often super high end displays. E.g. Nvidia branded big format gaming displays.

It's called a monitor, that's basically the difference between TVs and monitors these days, since the death of terrestrial and cable TV. So just get a regular monitor like this https://www.amazon.com/Gigabyte-Monitor-3840x2160-Response-S55U-SA/dp/B0B4MJBSD9/ or this https://www.amazon.com/Philips-Computer-Monitors-559M1RYV-Replacement/dp/B096CG575L/

https://tinyurl.com/2p97hh2f

Sitting right at $1k

Probably but I have to assume they've accounted for that and in their assessment the risk of breaking the usage agreement is greater than the value and effort required to exploit the device

No, the maker has stated they have measures in place to detect any tampering, and that if you tamper with the device, fail to connect it to the Internet, or do not use it frequently they will make you return it or pay for it.

There's something like a $1000 fine if you're not using it in the approved manner.

They probably still are the owners of the device and would make you pay for a new one right when they discover that you're not generating revenue anymore.

You'd have to try it to find out. I'd like to think they were smart enough to brick this thing if it doesn't call home every so often or maybe it has a unique controller? Maybe you're really badass and can make it happen. They could always try to come at you for...$550 I guess? I think that's what their fine print says.

edit: correction

You can be watched while you watch ads while watching ads