I'm traveling from Vienna to Budapest (one-way) in mid-May as part of a larger trip with two friends. I can book a RailJet train for EUR13 on the MAV-START website; the same tickets cost EUR39 from OBB.
The MAV website, along with other reports I've found online, explain that tickets purchased online may only be picked up at ticket machines within Hungary. Since none of us will be in Hungary before arriving on this train, we're not able to do this.
I suppose I have a few questions: are there any third-party agencies within Hungary that will send me these tickets (I'm in the US, but one of the friends on the trip lives in Germany)? Will walk-up fares at Wien hbf be cheaper than those quoted online?
If all else fails - any recommendations on efficient and cheap buses? We're looking to leave around 1300 and arrive around 1600.