$1.000 per 2.000 sessions per tenant/month is very expensive to sell on small businesses.
My suggestion is to create a license based on pay per use, like Microsoft Azure licenses.
For example: I used 500 sessions in December, I will pay $250 at the end of this month.
I agree with this idea!
It's important to remember the tens of thousands of small businesses that have 50 employees or less. This is a horrible barrier to entry that most small businesses can't seriously consider, much less implement.
I'm also thinking from the perspective of a new developer who wants to learn this technology. Beyond a (very short) free trial, most developers are not going to have access to PVA long enough to be helpful at all.
I can't imagine most dev's being brave enough to approach their manager with this kind of dollar figure.