I have a few times. My last job's orientation came with a bus ticket to their orientation. The one before that flew us up there and put us in a nice hotel.
Buses are more comfortable than planes. There's a bit more room to the seats and you don't have that weird pressure like you do on flights.
Bus stations, however, are sketchy as fuck. They are always ghetto and there's black homeless people everywhere. There's always people stealing shit, too. Airports are much nicer places in general.