Half a million pounds per each 20 year old out of service ground attack jet. I say that the MoD actually got a good deal seeing that most ex British military aircraft disposals go for a fraction of that. Yanks are buying them to rob for spares that fit their AV-8Bs anyway, not to fly. Anyhow we have begged, borrowed and stole off the Yanks for years to support operations hence I've not go a problem with giving them a bargin back.
Harrier in the UK is gone...Live with it.