Studio was my first foray into the 3D world; beforehand I was all about the pen and ink.  I have the beta version; there are interesting aspects of it, yes.  The Texture Baker, the Puppeteer, the render engine and the other options that it will provide are tempting.

I also have Hex 2, Bryce 5 and 6, C3DE, C7 E, and C6 Pro.

My computer doesn't have enough resources; so I've whittled them down to Studio 2, the Beta 3, and C6 Pro for now.

For myself, I am not purchasing anything else.  I want Maya, and 3DMax, Inventor and/or ZBrush; someday I want to be able to actually make this my life's work.  I have been approached for two different gaming productions, though without the knowlege and experience in the aforementioned products-no way I could do it. 

Though Studio has been my introduction into this world, and I've both loved and loathed all the programs I've used, I'll always have a fondness for the ol' Studio.
 

Even if there are no plans on purchasing the Pro version.  :)