I'll get stung by that next season. Last year my dad and I got adult season tickets, and a free one for my son. This time round my dad has turned 65 so gets a concessionary rate (back to where he was a few years ago before they changed it from 60 to 65!) but that means I'll now need to buy my son a seat. Across the 3 seats we've probably saved money, but dad will save while I pay £150 more.