Other way of looking at it is to think of all the money you’ve saved over the last three years. It would have easily covered the extra £50. I’d think a special edition falls under the “extra hardware” clause though 😉

I follow a similar rule but i’m not quite as strict as you – I go to £30. £35 if it’s something I really want but that is rare. I’m very tempted by the Halo Reach Special Edition since i’ve got the Halo 3 special edition already!