Right there, you just said the exact reason why magician foolers are on the market at all: because magicians think they must be the best effects in existence.
I mentioned Derek Dingle before. Lots of magician foolers. That was his best-selling material. But do you know what stuff he actually did during his paid gigs to the laity? Cigarette through coin. Ambitious card. Professor's nightmare. Cups and balls.
Another example: I attended a Luke Jermay lecture in '09 wherein he demonstrated his use of a gimmick that fooled Max Maven. That routine is now commercially available. But in that same lecture, Luke said that he has never performed this in a paid gig. His bread and butter? Q&A acts. The routine was an experiment in performance theory, but he knew it was far from the most commercial thing in his repertoire.
If you want to buy these things, it's your money. Just be aware that these are not commercial effects. They were never intended to be performed for non-magicians.