I dont mean to offend but this kind of reaction to pricing almost always comes from people with little to no money, traction, revenue etc.
The reality is, when you have a game in the market, costs like $75/mo or even 225/mo for iOS/Android targets - that cost does not even cross your mind. It is less than the cost of a single developer for a single day.
It's way too much for the Indie crowd, though, and that's Unity's big problem these days; it's being attacked from below by UDK, where the far lower upfront cost appeals to indie devs and tinkers, AND from above by UDK, which is a much better pro-level AAA framework than Unity, and for which the $$$$$ no cut of gross revenue licensing cost isn't an obstacle.
I have used Unity free version, it was great but always felt nervous about dropping $4500. UDK addresses my pain point and likewise for other indie developers by giving access to a triple A framework without having to worry about return on investment. I definitely don't mind sharing the risk with UDK for a meager 5%.