All Web-To-Print is not the same.
Since we all got desktop printers at home, printing for many has become so ubiquitous and click-done that the perception is that commercial, large-scale print manufacture simply happens at the push of a button.
“Why does it look one way on my LCD monitor under blue fluorescents than when it’s printed?”
“What the hell do you mean you can’t get the paper when I see paper all over the place?”
Riddle me that, Print-Guy.
