Compare the costs and timescales of the Tornado GR4 and Jaguar 97 upgrades and then rule BAE Systems out of the equation as a causal factor of unexpected delay, uncontained cost growth and inflated pricing.
Or compare the cost of the 'internal bid' on Harrier GR9A and the BAE plan.
Of course the politicians and civil servants and senior officers can take a share of the blame too, but BAE's monopolistic position as OEM/DA and the RAF's unwillingness to properly assess, manage and accept risk combine to make these problems common, if not inevitable.
People do not knock Britis Wasteofspace on the basis of unsubstantiated prejudice, WEBF. The company has worked long and hard to earn the reputation it now enjoys.