I was in my local GC about 2 days ago, and while perusing the walls, killing time, it dawned on me that I saw ZERO PRS guitars - no US, no imports, no used - nothing. Did GC lose their PRS contract, or did I miss a screaming sale the weekend before? 

Think you're right about Mesa. They don't even show them on the website at all unless it's used. GCs in Charlotte are about the same. A handful of SEs and a couple S2s. I do see some decent core models float in used, even a Private Stock once.""...during GC's "Great PRS Selloff.""
That's when we acquired our two '10 tops' for below used prices... along with my beloved Mesa TA30 for even less than that. And a few other exceptional deals we couldn't pass up...
Regardless, I do believe they quit selling Mesa all together, and they only carry PRS at locations that show movement of inventory. Our local GC has a handfull of core models along with a good selection of SE's and only a couple of S2's...
Think you're right about Mesa. They don't even show them on the website at all unless it's used.
That's alright. Mesa is still one of those magic brands in the rock community. I'm sure it's hurting GC more than Mesa.from what i heard, mesa wanted GC to carry their pedal line when they came out, and GC wouldn't, so mesa bsacically told them GFY, we'll quit dealing with you.