The problem with the TSR 2, whilst it was a tremendous piece of engineering and an unbelievable showpiece for BAC (and the British aerospace engineering sector as a whole), it was a very expensive way to carry 6 iron bombs to a target, and did not really have the legs to be a true Vulcan successor.
My personal view (and one which i have said on here before) was that it is always nicer to be left with a "what might have been" than a "oh what a shame"
Matt