At $2,800/kg, I'm curious enough to start looking at options for a _personal_ satellite. It's unlikely that would be viable, because the cost of the communications and stationkeeping hardware would be prohibitive. I'd be interested in sharing space on a "F/OSS" orbiter of some type, but I've not seen any projects that would make such an idea viable.
At $100/kg... I'd figure it out, if only to say that I'd done so. At that price I'd be trying to figure out a way to stream video from a microsatellite of orbit, de-orbit, and re-entry just to show the couple of "flat earthers" I know what's obvious to the rest of us. Let them pick the camera and lens so they can't fall back to "It's a fisheye lens!".
In all seriousness, though - at $100/kg, you'll see all kinds of entities trying things that have never been practical before just to see if they'd work.
If launches are that cheap, just keep throwing junk up until you find out where the line for good enough is.