It's disingenuous to sell wares without very clearly mentioning that it is a paid plugin, especially something like this that runs into 1000s.
The only place this is mentioned is inside the FAQ tab, the very *last* sentences, which mentions "Evaluation is free".
You lost a customer.
Anyway, charging US$ 5,000 or so is dumb. May enterprises who pay that kind of money rest in peace.
I'll wait for someone to launch a similar plugin for free or much much much cheaper.