But - the first thing I want to know it "how much" and then shortly after that I want to know "can I run it myself".
Personally I do it the other way around, first I try it out and see if it's useful, then I'd figure out if I'm willing to accept the tradeoffs of pricing/lock-in.
If you do it the way you suggest, wouldn't that mean you can't actually understand if the business model is fine because of the benefits you get? Seems backwards to me.