Interesting, I am drawing a blank when a subscriber will want to purchase two subscriptions on the same website... ? Is he or she purchasing the additional subscription for someone else?
Your customers could have different levels of subscriptions for all kinds of things: CPU ('dynos'), databases, backups, monitoring services, etc
Exactly.
From the standpoint of a company A that uses Stripe billing, which would be preferable if you were selling per-seat services to Company B?
1) Make the person from Company B subscribe ten (or a hundred, or a thousand) separate times using different logins and passwords.
2) Let the person from Company B specify that they want to buy ten (or a hundred, or a thousand) seats, and manage them all from the same account.
The other option was asking the user for CC details each time and creating a new customer at Stripe - but that felt like friction.