I know there's no hard and fast rules on this subject but I think common sense should have some bearing. The other week Norm built an absolutely gorgeous highboy from tiger maple. One look at the wonderfuly figured wood, gleaming brass fittings, elegant shape said it all: heirloom piece for sure - greatgrandkiddies will still be displaying this one.
Then Norm pulled out a drawer and you got a good look inside. It could have passed as a crude example from a pallet factory's seconds pile! How can anything so lovely have such an ugly and utilitarian interior?
Maybe I'm being hyper fussy but my inclination (were I able to craft to that standard to begin with) would be to take a great deal of care with the "hidden" components and make them almost as much a joy to behold as the exterior. OK, using good hardwood for cleats and dust frames and runners, etc. will cost more than ply or poplar. And maybe the economics of putting the NYW show together are tighter than we think. But I just feel that an exceptional piece should have exceptional (but not necessarily the same) standards throughout.
FoggyTown