Satellites are on balloons. Google the satalloon program by Google. Nasa also uses balloons. They're launched in Antarctica. Most communication happens through under sea cables and cell towers, such as GPS. GPS is not satellite based. You can't see curvature, ever. You've lied to yourself. Even your God Neil Tyson will tell you you've never seen earth curve ever. The flat earth has been understood throughout history to this very day. Propaganda has lied to you.

Ships go over the horizon? Disproved, on youtube there are 100s of videos of amateurs using P1000 cameras to zoom in and see the whole ship again.

Curve of earth is 8inches per mile squared, that means anything past 100 miles should be behind 6,666 feet of curvature, yet on youtube you have people who use infrared lens to take photos of mountains at a distance of 175miles... Disproving the curve.

Check out the amateur weather balloons that people send up to 120,000 feet into the sky, with a camera (that doesnt have a fish eye lens) showing that horizon is perfectly level and there is no curve.

Satellites are just upper atmosphere weather balloons.

You cant see curve from the tall building, its impossible, cant even see it from a plane (this was said by Neil degrasse tyson.. so dont shit on me for it)

What do you mean "why would we bother?"