"Photoshop it in, just like everybody else." refering to the desire for deep blue skies from the SHOOTING ARCHITECTURE QUESTION thread.
I truely believe that it is always better to solve a visual problem in the field if it can be solved rather than in Photoshop. The results have the sense of authority of something that happened in the real world rather than the virtual world. That sense of authorty is true even when we artificially light a subject, use filters or highly manipulate the tones of a print. It is that authority that gives photography a unique place in the visual arts and separates a photographer from a graphic artist. An illusion? Maybe. But it is an illusion I choose to hold on to.