On top of all the valid observations about Simulators, MQ's and bus trips, it might be the maintenance of your aircraft that tips the balance.
It is
rumoured that the new build Hangar is only at Preliminary Survey stage, that the solution could be somewhere between £27m - £40m, and that it is not funded, (or not fully funded)
Also
rumoured that someone important has stated "If we don't 'cut turf' by 1st March, then we are going to have to consider contingency plans for Herc maintenance."
(The 3 slots in Base Hgr are for scheduled maint, 2 extra slots are required for all those jack-ups after you fellas overstress/heavy land)
I'll see your Aircrew bus rides & MQ's, and raise you Fairford/MAe Cambridge bolthole for 50% of your groundcrew. For up to 2 years!
...or just keep Lyneham open for another couple of years
Good luck to everyone in the Turd Polishing Dept