I have checked the online store, and the cost to get one SIM is:
$5 for the SIM
AND $31.61 for shipping (!!!)
I had to limit myself on really recommending Hologram on some hobbyist forums, because I would have to add the note:
“it’s good as you only need one SIM. If you want to buy just a few more, it will be way expensive, if you’re a hobbyist”
I know hobbyists are not the primary target, but I still think a hobbyist Today might generate buzz, advertisement and even might recommend it to their company, so it could still mean value.