If you are using AutoCAD and do not create 3D content then why are you using AutoCAD?

Is this a fair question to ask?  AutoCAD LT® can do almost everything "regular" AutoCAD® can except for 3D modeling/rendering features and LISP routines, essentially.  Are you waisting your company's resources by not purchasing AutoCAD LT®?  I don't know, ok I do, but, still.  What do you think?  If you aren't creating 3D content, why?  If you aren't using LISP routines then I ask the same question, why?

Why do you limit yourself?  Why do you pay for tools that you refuse to use?  If you are creating items that only have two dimensions why are you using a three dimensional creation tool?  Many sheet metal fabricators use AutoCAD LT®.  They get it.

I'm not trying to be mean here I am honestly curious.  If you purchased a house with three floors would you only use two of them?  At least store stuff in the third floor right?  Have you ever said to yourself or others, "I've never seen a real need to walk up the stairs to the third floor so I don't use it."  You're paying to heat/cool it and to protect it from the elements.

Make an argument for purchasing full on AutoCAD® but for using it like it's AutoCAD LT®.