Everyone has some degree of artistic talent as well as mechanical apptitude - tho they may not always be apparent.
Funny, I was just pondering this question last night asIwas bouncing between projects. I think model building is a combination of both artistic/mechanical aptitude. At times to solve a problem it requires both: Artistic/creativity to solve the issue with the materials at hand and mechanical to reproduce your solution.
Pure model assembly is shear mechanical, IMHO. To take it that next step
requires a certain amount of artistic ability for problem solving. When one reaches
the painting stage I believe it's more artistic than mechanical. It takes a certain
mechanical ability to apply color in an even coat, but it takes an "eye" to create depth and "life" to project.
I disagree with FightingJoe and Jeeves that they are not artists to some degree
"just for following instructions" - we all do. what I think that they are missing is
what they do with it afterwords it terms of painting, decalling, displays ad nauseum - stuff that is not called out in the directions.
I do consider myself an artist - in the 3D computer world anyways, somehow
I just can't make a true transition between modelling and modelling/rendering on the computer. Like music city, give me a pencil and "T" square or a CAD/ 3d Package I can do almost anything - but I still need to work on my techniques for model building and display
3d modelling is an option
a true mental excercise in frusrtation