I do a fair bit of air travel and always prebook and pay for extra legroom. At just a tad over 6'4" the extra legroom is not a luxury, it a necessity. There's good seats and bad seats. I have my preferences, and book accordingly.
Recently jagged a berth on the Dreamliner's inaugural flight from Melbourne to the Gold Coast. Didn't know what all the fuss was about when I arrived at the departure gate. Seat 2C. Once seated another passenger asked how early I had booked to get such a good seat. The night before last was my answer. Nice plane, business class seat at the economy rate. Leg room in cattle class is apparently tighter than on previous aircraft. Bums on seats equates to $$$.