Hi Diana,
Hercules are much older than 30, and they are still on the air. The same applies for the F-18, which lifespan is being extended with new comms, sensors and weapons. But if the policy is not to retrofit/upgrade the vehicles then, yes, you are absolutely right, something new has to be bought. Then the Mercedes is a great choice. I wish I had one to see how is built...
UK Army has/had Hobson Industries rebuilding Wolf's, and there was a program (Tithanus ?) to retrofit some of the old defenders to prolong their life (perfectly suitable for low-demanding tasks in easy theatres).
Carlos

