Quoted from Gotpins:Apparently the drum sanders available to the various playfield producers are not large enough for the widebody format.
Is this really the reason? How were they sanded originally?
The sanders are certainly available, but they cost $4,000.
Even used ones will fetch $2,3000
http://www.grizzly.com/products/37-Drum-Sander-10-HP-Single-Phase/G0449