To judge a person, and to judge a pinball machine are two very different things.
For one, a pinball is pretty much an open book. You can see all the shots, all the artwork, and by way of experience from playing other pins, can easily make a pretty accurate judgment on how good or bad it is without even touching it. (most especially with such lame 'artwork')
As for movies, a combination of reviews, of 10 mins of preview footage, a description of the plot, seeing whos acting in it, the director, and much more... and can pretty much tell if its something thats even worth your time. Im not saying that this is always the case... but tell me Im wrong that I should have actually went to pay to see Sucker Punch?! Its one thing to judge something with somewhat of a deep plot that isnt really revealed... but SP?
Also, from a moral standpoint, its not Nice to judge people. Especially those who have passed away that cant defend themselves... nor to the children who may read such posts.