Exactly nothing has happened yet in how long?
Can you honestly believe that anyone is going to spend 250k to replace something which works everyday with no problems?
Those laptops will be going with exactly the same software on until the last of the type is turned into razor blades.
The fact is you say its good as broken but the fact is it gets used everyday and it works so until its properly broken akin to the engine compressor is seazed it will be staying on the wing. To be honest if any of the IT guys even attempted to touch them they would get there fingers broken.