I'll buy it for any of my employees who it does expire for (where they can't access their passwords).
Are you in compliance with the 1Password licence to use it long term for business without paying for it? (I don't know the answer to that)
Our company is 3 months old, so most our employees are still in the trial period.
We purchased the licenses for any employees who completed the trial.
We let our employees choose between 1Password, Last Pass, etc, they have choice (which is why they need to trial it).