Definitely they're still out there - but as Tim mentioned, just random whether you'll get one. ; I've had a few in the past year that were fun - joking, trivia, etc.
I still use lots and lots of busses...I much prefer them myself over driving. ; In fact, other than a rare few times like heading to a resort at night for dinner, or going to minigolf, my car never leaves its parking spot from the time I arrive to the time I leave. ; It's Disney transportation for me, all the way! ; Though to be honest, the bus is my least favorite of the three primary modes of transportation - with boats being far and away my favorite, and monorails second.
Still, many times I go to the parks each day using as many as 3 different transportation vehicles. ; Given a choice in the morning of hopping a bus from Old Key West straight to Magic Kingdom...or taking a boat to Marketplace, then a bus to Fort Wilderness, then a boat into Magic Kingdom...I'll take the long way every time!