What about the worst casinos you've been in?

For me, as for bigger casinos, it's gotta be The Western and Railroad Pass, at least when in Las Vegas.

The absolute worst casino was The Lakes Region casino in Belmont, NH: a "charitable gaming" facility.

It really sucked because the payouts at craps were NOT the norm, they were substantially less, and the most you could bet on any bet was three bucks.