The collector wanted the best ST TNG possible. It is currently over $8500 ("currently" as we are looking at Color DMD and a couple of mods to ADD to that price).
Cabinet has been repainted and redecaled. Playfield touched up and clearcoated. New ramps throughout (not the milky poor repros), plastics set, LEDs - the list goes on.
And therein lies the fundamental differences between "shopped" and "restored" with the outlay reflective of price.