This topic is a never-ending struggle for my company.
Most of the people providing their "logo" for a sign project ARE LAZY AND COULD NOT CARE LESS ABOUT DETAILS. They especially don't want to be troubled with nonsense such as the difference between pixel-based artwork and vector-based artwork. Very often these clients will grab the very first "logo file" they find in their My Documents folder, email it and then demand you complete the project using that vomit-quality garbage.
It's a digital file! It's digital! Since it's digital it should work!
So we just plain don't f*** around anymore. When we receive that knee-jerk JPEG "logo" image we immediately fire back a canned response of "you're going to pay $50 per hour for this crap to be re-built in proper form unless you can provide real actual artwork than sewage-level gunk." The response is worded more polite than that, but the gist is still the same.
And we remind them that
computer use in real life is NOTHING like the phony
computer use in any of that CSI: Miami nonsense they love watching on TV. Oh, and FONTS! Well, we're not going to hand digitize that logo letter by letter if there is a commercial font we can buy to get the work done faster. But we're going to bill for that font purchase. However much it costs!
Those warnings are usually enough to inspire the client to look harder, make phone calls or do whatever is needed to be done to provide some proper freaking vector-based artwork.
It is still grimly funny just how many clients will try to take the same JPEG image they originally sent and place it inside an AI, EPS or PDF container file and then re-send it. As if the container file format is going to somehow magically convert those pixels into clean vector art. Rookie mistake.