"Harry - no, we didn't but that doesn't mean we won't in the future. As we know, times are a-changing and development costs are astronomical. Anyway, I only said we might look into it..."
I'm sure the SO's in the RAF would love to buy a state-of-art US penetration bomber but you hit the nail on the head - development costs are through the roof and even the USAF can't afford the aircraft they spec.
The B2 cost $2 Bn per aircraft and costs $135k an hour to run
The UK Defence Budget is around £ 38 Bn a year ...........