Quoted from ejg10532626:This is dirt cheap, planking or no planking.
It's an old Gottlieb.
THEY ALL PLANK!!
Nice get for someone local --
Ive seen and have a number gottliebs, and the only ones that plank were the ones stored poorly (unheated warehouse, unheated garage, damp basement, etc)
Any environment that would be unfriendly to bare wood and artwoek would be unfriendly to a pin.
It's not necessarily a trend for any particular manufacturer. I've seen it happen with different manufactures and games of different ages.