For someone to supposedly producing 250 "Predator" pinball machines and not having a single mention of it anywhere on their web site(s) IS cause for concern. Even more so is that it was listed and then obviously pulled. My suspicions is that the license was not obtained and at this point if it is produced, they are trying to not draw attention to it for obvious legal reasons.
I could be wrong, but that would be my gut instinct.
Its either that or they have failed marketing 101.