I'd gladly pay a bit extra for some extra leg room; $15-25 is nothing. I flew 9 hours to and from Heathrow last week and by the time we deplaned my feet had swollen to the point I almost couldn't get my shoes back on (that's the last time I'll ever wear Italian slip-ons on an intercontinental flight). Having the extra room to stretch my legs would have been worth paying extra for (short of being raped to sit in business or first class).

On an auto note, I sure saw a lot of German iron on the streets in London. It seemed every second car was a BMW or Merc, and I could count the number of Japanese vehicles I saw on one hand. Saw three American cars too; two Jeep Liberties and one Dodge Caravan believe it or not.