Bus from Luton Airport to London Victoria Coach Station

Today I arrived at Luton Airport, to get to London, I took the National Express coach from Luton Airport to London Victoria Coach Station. The journey took around 1 hour and 30 minutes, depending on traffic. Tickets start at USD$10 if booked in advance via online or can also be bought from the automated ticketing machine at the airport. If not because of the bus I would have to spend about USD$190 if I were to go to London by cab.