Was just replying to the notion that this couldn't be artificial highway robbery just because their net margin isn't great. I believe it definitely still can be, because apparently the only way these companies are even in business right now is exactly by highway robbery.
I wouldn't be surprised if equipment and certification costs would dwarf the actual fee charged per month and user in these applications, and the market entry barrier in such highly regulated industries is usually enormous. (It took Iridium a long time to get SOLAS-certified, for example; before that, Inmarsat was the only solution besides HF radio.)
In the market of providing fast, non-safety-critical internet access to remote places however, my guess is that Starlink is going to shake up things significantly.
In some cases it might pay for itself in less than 1 month of service compared to the $/Mbps from the VSAT, using antenna hardware such as this and various vendors' choices of modems (and 3rd party VSAT ISPs that resell transponder kHz and operate teleports).
https://orbit-cs.com/maritime-satcom
Go price what it would cost for 1:1 dedicated monthly recurring billing to have 5 Mbps down x 1 Mbps up DIA service assigned to a medium sized maritime VSAT terminal that roams around the Gulf of Texas... Or even in a 5:1 or worse contended network.
What you'll see is the Iridium of course remains live and on the network and is used for critical voice calls and message and such, while the data network on the ship/offshore oil rig/whatever has a new better DIA path via starlink.
it is not like they have an extreme profit margin between their actual operating cost and the cost that a chunk of dedicated 1:1 transponder kHz/MHz (or a whole 36 MHz transponder) can be sold to the end user.
If anything, it seems like the customers should feel lucky the investors are risking their money on this product/service, and it is being offered at all.
I believe they can still commit highway robbery even without their net margins being dramatically high, since highway robbery is exactly what you stated - charging too high a price for its products/services.
For high-bandwidth large-terminal, you have Inmarsat GX, Viasat and various other Ka and Ku band based providers; for safety of life you have Inmarsat and Iridium (except at the poles, where it's Iridium and HF); for land-based tracking, you have Globalstar and Iridium; for handheld telephony, you have Iridium, Inmarsat and Globalstar.
Notably, Starlink also does not look like it will be competing in any of these fields.