re: Anybody up for a privately-funded salvage mission?
How about if the DoD vaporizes HST with its anti-ICBM laser - Then NASA uses the money saved (1.3 Billion USD) to launch a 4m Hubble replacement on a Delta IV.
Or maybe we go ahead with the de-orbit mission and "accidentally" drop it on a Iranian nuclear facility - NASA could then back charge the DoD and proceed with a Hubble double.
Seriously, I really think we need to get over Hubble and go forward with a big fat next generation optical space scope. The PR value may out weigh the scientific value but the same could be said for ISS.