Where's the wear? I can see a touch around the 4000 insert, I think.
I think that is dirt on the glass that has shadowed onto the playfield.
The playfield has alot of crazing and ball swirl marks but it looks like there is a coat of clear over the playfield now which is giving it the nice shiny look. There is a bit of wear on the top side of the pop bumpers as well. It could be worse but it could be better as well.