Costs in terms of finance or change of regime doesn't matter if taxpayer pays the bill and similar people are installed...
@skells Cost in terms of finance doesn't matter if taxpayer pays the bill *always*
(Can't think of any exception or trick that isn't the same thing)
Effectively "who cares how much" and just 'a bit' of thinking where to take it from or how to label it (if anything) so I don't think cost like that means there is any limit as already shown by national debt or existing cost for things.
And maybe 'expensive' doesn't mean money, sure again the people or the structure take the hit even if chance means just replaceable with new people and the next team gets a go (same mentality) under similar structure (as long as it's the same promises to do different etc). Same-same but different actors and chairs to move around and keep people busy, hopeful, over-writing previous scandals and events.
I assume even those two main points of regime change might not be what you mean but still a big part of it for sure...
and happy if you want to expand on it in whichever way you want...