Yeah, it's worth it.
For some reason the last few years it's gone up in price but I really think it's a sleeper to more diehard pinheads and those who play it or own it, know it has lasting value and fun. It DOES need some more lighting at top of the pf, that's for sure but that can be corrected. I added in some Comet LED bumper rings and now I can see the ball when it flows through the pops.
All the + comments above are on-target, but the things I like best: There are some original cartoon callouts ("Hey Slate? How about a bonus?") plus IMHO one of the best sounds in pinball. When WMS created that DCS Stereo Sound, it really makes this title sound awesome.
I bought it not knowing I'd like it - but after 2+ years with the fun everyone has with it, it's pretty much bolted to the floor.
Plus, playing it always makes me smile.