If there is a paid account already setup for a company, but other users who are not in Aha are interested in demo-ing the service in a way that connects/collaborates with existing users, it would be helpful to provide temporary seats that could expire after a few days. This way new users could trial the service while leveraging an existing teams configurations in Aha.
The current option to just trial the service on their own might not do Aha's functionality justice, and this might help spur further adoption within companies where certain teams are early adopters of this service.
I would think this is a great way for Aha! to upsell and increase additional paid users. As we socialize Aha internally, it would be very helpful to use our existing account to show a different functional group (i.e. marketing, project mgmt, etc.) how they could engage with us in Aha.