One thing is for sure: they could have easily gotten somebody to get off the plane if they offered $1000 for waiting for the next flight, and their company lost

One thing is for sure: they could have easily gotten somebody to get off the plane if they offered $1000 for waiting for the next flight, and their company lost more than that money, so it won't worth to be doing this again for any airline. I'm sure this has happened a lot of times in the past though, the only difference now is that somebody could record it, because of easily accessible smartphones.