Yep, boredom is why I quit playing poker in casinos. I'm usually at a casino with friends to have a good time, but winning poker requires folding the large majority of hands [1], and it's just not fun. Craps with friends on the other hand, but I digress...

Also, very different than small poker games with friends where the point is hanging out and 'gambling' a bit.

[1] Tournament style is different from an open ended game.