I wonder if there will be a grey / black market for non-original capsules. Seems promising since, as far as I know, argon is not _that_ expensive to buy.
I've used the Pek Preservino system for years. Their argon comes in the same little cartridges as N2O or CO2 for siphons. In fact, I just started using N2O since it works well enough for just a couple days.
Looked it up. $12 for 4 cartridges, or $80 for 30 cartridges. That's pretty humane.
But given that Coravin has a separate page for their board of directors, each with a full bio and a mugshot, I think it's safe to assume that their cartridges are non-standard.
The capsule contains 20ml and costs $10 ($500/litre).
So yeah, someone should be able to create non-original capsules for a lower price.