My calculations were based on staying somewhere less expensive than the Hilton, it was used as a reference for showing how expensive accommodation can be. Even then, the Hilton is a fairly standard choice of accommodation for employees from respectable businesses / firms.
I know, why don't MPs just pitch a tent outside the Houses of Commons?
We have to be realistic - you can't expect anybody to work extremely long hours, work away from home, and stay somewhere of a low standard, regardless of occupation. That isn't to say that some expenses claims have not been outrageous, but MPs certainly do need expenses - to say otherwise would be ridiculous.