There are no NES or any console games in the Hamster Arcade Archives series.
I also bought the PS2 Oretachi Geasen series of arcade games. $20 was a great price at the time especially as those games included a mini OST music CD with a main theme remix, also a mini-DVD with gameplay highlights, a mini guide book, a flyer card with reprinted artwork and moves lists, as well as a standard instruction manual.
Agreed with the OP that $30 is too high for this basically bare bones digital copy Osman/Canon Dancer.
As for "mental patients", well some of us like to own what we pay for.
I essentially will not have paid a dime for any of my PS4 games, as any that I decide I dont want I am able to sell for the same or more than what I purchased it for.