If your entire target market is enterprise then I suppose this route works well but if you want to hit smaller organisations it deviates a lot from what we're used to. GitHub, Slack, GSuite, they all provide prices and are successfully sold to small organisations and enterprises.
As a non-enterprise, there's no point in me signing up for a trial of a tool that may be orders of magnitude outside of my budget. A lot of my decision is based on the value proposition and I can't understand the value I might get if I don't know the price. If it's $10 a month and does what it says then I probably won't think about it, if it's $1,000 a month then that's quite a different decision process. I don't want to bother with a free tiral if I can't even see the price. Am I just booking to test drive a car I'll never be able to afford?