I get that the showcase items are pre-routed for what they believe will sell (and I would expect that they know what they're doing in this respect).
But, particularly for the lower volume, non-traditional shapes like the WGD, or less-common exotic wood traditional shapes, I'd think it would make more sense to leave more options open. I can't say how many showcase bodies I might have been really, really tempted to put on my credit card, if only they weren't pre-routed completely the wrong way for me.
And the only reason I built my rosewood 12-string tele is the fact that they had a beautiful, completely un-routed rosewood tele body in the showcase. Any routing of that body would have ruined it for my purpose.
There are always tons of flame and quilt top strats/teles in the showcase, and they can be pre-routed however. But cocobolo or koa, or other exotic topped bodies, and WGD, Iceman, Explorer, V, Z, etc. bodies should have (at least) the bridge and PU's un-routed.