that is one fat satyre! 
i assume it's a satyre... half goat half man...
as for what the PLE can't do compared to the commercial editions... it can't export, save files readable by commercial editions, and use plug-ins, oh, and it can't do the stuff that is specific to unlimited...
i suppose when you're just learning you're probably better off having the basic stuff until you get to the point where you want to do effects and hair and all that other funky stuff...
that's a "Ch" pronounced as a "K"
Computer skills I should have:
Objective C, C#, Java, MEL. Python, C++, XML, JavaScript, XSLT, HTML, SQL, CSS, FXScript, Clips, SOAR, ActionScript, OpenGL, DirectX
Maya, XSI, Photoshop, AfterEffects, Motion, Illustrator, Flash, Swift3D