Except for the fact that most machines out there will still have a crapola playfield and the high end restored ones will be worth something after all. I wouldn't expect more than $3500 though.
I have invested far too much to get back all my money. In addition to a new repro playfield, I installed a new Rottendog CPU driver board and power source and knocker assembly. Also will install a playfield protector and rebuld flippers and pop bumper assembly. New legs and leveling feet and cabinet protectors, lift channel and translite framing, volume pot, ribbon cables, all LED lighting, star posts, Cliffy inlane blades, spinner assembly, playfield glass, rubbers, balls etc. The machine came with a Pinscore display and new plastic set which I installed. Many more improvements as well. So I expect to loose money on this one. I guess it's a labor of love.