Honestly even the amount of clutter on the average slot machine is something I just find totally repellant. I remember dicking around with an old one at an antique store once and I found it pretty fun even though all I was doing was pulling a lever and losing money (it still only charged like, pennies or something. It was there for novelty). Modern slot machines I can't even look at without feeling sick. There's some kind of overstimulation of the human senses involved. I imagine gambling sites look like 1990s era Geocites pages filled with flashing banners and shit.