And isn't the wood Dyna the same shell except no beds and no interior paint?

This is correct. They added the gloss paint to brighten the tone of the drum. Not sure how much difference it actually makes.

The Dynasonic did indeed use the same Keller shell, minus the beds. The Dynas did have a bed, but only several thousands of an inch.

The earlier Holiday snare is a completely different animal from the Powertone or Tower or Luxor. The Holidays (and Spotlite and other b&b models) used the Jasper shell. These had wide flat edges and deep snare beds. A very different drum.

Dan,

I guess it makes a $2000 difference! The only difference between a $200 COB Dyna and a $2200 wood Dyna is the shell. So is this same Keller shell really worth $2000? Apparently it loses a whole lot of value when it's painted gray and drilled for eight lugs on the Powertone rather than ten lugs on the Dyna.

Maple Dynasonics are relatively scarce since they were considered expensive in the 60's, and brass snares were also more popular regardless of the model. So, there are many times more brass Rogers snares around than maple of the same model.

Relative scarcity + the historic Buddy connection + high tech design = high prices among collectors today.