First 5 years of business:
Artist first, businessman second.
Last 10 years (and currently)
Businessman first, artist second.
x 10,000
I've recently begun the shift toward improving my business savvy. Creativity only goes so far on its own merits.
On on board with James reply to Dan's very poignant post. I'm still not the best businessman...but I'm trying & learning.
(I'd love it if guys like Dan & Gary Anderson (another sign business hero of mine)...would hold seminars on how to run your business...like a business!!) Not very easy with a brain that works like mine.
To address the OP...I think it depends on what kinda signs you want to produce.
People have always told me "Ooooo...you make that look so easy". Well, do anything for 20+ years and it gets easier. But I've always said that I could teach a monkey to do this.
What I mean by that is when it comes to doing a nice 'basic' sign...some training in how to produce a nice legible layout, with proper negative space and balance is all that it really take to make a nice *basic* sign.
You've all seen signwork for pizza parlours, laundrymats, and parking lots that did their job just fine. These aren't works of art....they're SIGNS! And these can (and always will be) produced by folks with little to no artistic ability.
(One of my early mentors was a signmaker who had 'minimal' artistic ability...but he taught me alot. I took it from there.)
SO my answer to the question is NO.
If your intention is to produce nice readable signwork...you can (as many people do), be a fine signmaker without any real artistic ability. Learning what a proper layout is may take a bit more time though. It's only a matter of what you want.
But...if you want to produce art.....well...that's a different story altogether!!!