The list is endless....Didnt the Harriers all have extensive upgrades just before the defence review of 2010 binned them, and sold them off cheap as spares for the USMC?
Nimrod MRA4? An admitedly expensive overrun that was just coming good...
At this rate, come 2030, the F35s will be "long in the tooth" and "expensive to upgrade", so they will be cut up for scrap, so we can buy a few Tempests...