And it's not $200 for Mach4. It's $2000... That's what Mach4 costs. $200 is for the Hobby Edition, and very few hobby-use-only people who need a CNC machine are going to pay thousands of dollars for one even with the hobby edition.
The Mach4 hobby license is basically the same as the Mach3 license. Artsoft has pointed this out numerous times on the forums, but for whatever reason, they refuse to clarify their website. You only need the Industrial version if you want the Macro B feature, and phone support.
At a time where most people's use of CNC machines should cost around $400 all up, Mach4 risks making itself irrelevant instead of the defacto standard.
While there are plenty of cheap machines and controls available today to make the $400 machine a reality, there are also more people than ever willing to spend a lot more for a high quality machine control.
Artsoft has made many decisions to make sure that Mach4 will never be anywhere near as popular as Mach4, but price isn't one of them.