I like how silly Whoa Nellie is for having the crate and beer cans, but I can't see how someone looks at the art and think they nailed it. The humor is juvenile, it's far more risque than any actual EM, and it seems aimed at guys who like going to breastaurants.
Whereas I look at Primus and think Zombie Yeti nailed it. (Or Pabst with Dirty Donny). And it's not me being a prude. I really like all the Elvira games, which is the same artist and going for an exagerated sexuality sense of humor. I just think think it's a failure to execute on Whoa Nellie
Primus is expensive for what it is compared to other pinball machines. But if you're a Primus fan, this is the only Primus you'll probably ever get.
That said, I would advise buying like five or more really good EMs for the price of one Primus. But I have the space and little funds. Some may have the funds and little space.