This is especially important when you're considering getting some printing done, although it applies to all aspects of life.
It's called The Impossible Triangle.
Quality
Cheaply Quickly
It's called The Impossible Triangle because you can not possibly have all three things, if you shop well and wisely you can have two of them.
So if your client wants a quality job and he wants it fast it won't be cheap.
If your client wants it cheap and wants it now it he can't be expecting quality.
If you get your art to the printer early enough you can get good quality work done for a reasonable price.
design-team@lists.fedoraproject.org