Spot on. I would buy a 28PC in a heartbeat. The majority of my work in architecture (interiors and exteriors). One of the reasons I left Canon for Leica and Zeiss (expensive learning curves, there) was that the 21/2.8 Distagon outperformed in every way the Canon 24 T/S stopped down. Of course, the 21/2.8 is not PC.
Now that FX is reality, we definitely need PC or T/S in the Nikkor range. BTW, no one needs AF on a T/S or PC lens, as all require refocusing after tilting or shifting anyway, in my experience. Just a razor sharp, distortion-free lens of the quality of the 14–24/2.8, please.
I'd be all over a 28PC as well, since I'd love to do a lot more architecture but simply don't have the ideal tools (and my post skills are not there yet either, and I prefer to get the image right in-camera anyway...)
