if you're doing some sort of
sign it requires a ego the size of montana to rationalize a separate charge for artwork. Back in the day when you lettered something you had to lay it out first. An act as basic as popping the lid off a can of one shot or palletting your quill. That was the artwork. Certainly there are exceptions but, in general, what those who see themselves as ever so special as "artwork" is just laying out the
sign. Do you merely load all of the copy into a sack and dump it out on a board leaving it wherever it lands or do you try for a more thoughtful arrangement? To those more normal tradesmen, it's just part of the job. Some jobs take longer than others, but then others do not. It evens out.
There certainly are exceptions, but not as many as a lot of people would like to think.
The tortured rationalizations and vainglorious declarations of uniqueness by those who do charge for artwork are always amusing. Also amusing is that the most of those who rationalize their separate 'art' charges usually aren't all that good at it. A journeyman
sign writer just does it out of hand and usually does it better than those who charge for it.