The Americans are in the same sort of position as us regarding aircraft, the FA18 is approaching being obselete itself...
Perhaps not obsolete, but too long in the tooth for US military needs. A common practice is to carry on manufacturing (jobs) and sell them to 3rd world powers (soon to be UK).
With my politically cynical head on.
Perhaps we are really moving towards an EU combined forces military commitment. This could be the same strategy achieved using the same strategy as we saw with the Post Office.
15 years ago everyone was outraged by the idea of selling off the Royal Mail, 'a sell off too far'. Since then it has been run down so much, and services have become so bad, that many people have said it is time for the PO sell off and/or an end to their protected status. I think most of us use DHL etc now.
Today the idea of an EU combined service is outrageous. However, in 15 years time when Britain no longer has an effective military capability we will perhaps accept the notion.
Sad reality.
At the end of the day, UK must cut spending drastically. The alternative is that we end up going bankrupt, and have to go to the IMF. Then the IMF will be making the decisions based on economic criteria, and in their interests more than UK's.