A nitpick (but I did like the helium line, somebody has to fall for it), if they were going that fast, they would escape. They are going fast enough so that the earth falls away (due to curvature) at the same rate the satellite would be falling.
I think the international space station (ISS) orbits at about 17,000 MPH, and escape velocity is about 25,000 MPH.
I left out that detail for simplicity’s sake but thanks for filling it in. So I guess that pretty much everything up there, unless it’s moving at precisely the velocity that would keep it in perfect orbit, is either spiraling towards or away from earth, and therefore doomed to become either Skylab or Major Tom eventually.