Excellent idea to give it to HIA!
Instead of the taxpayers of Dundee forking out for it, HIA will apply to the Scottish Executive for a bigger grant each year, still run all (and their new) airports at an even bigger loss, and we'll all share the burden.
Dundee is in a very difficult situation, the arguement remains for a social need for the airport, but their is no viable commercial case for it.
Giving it to HIA would be the solution that meets most of the requirements, but it would add (in a very small way) to the UK taxpayers burden in supporting many facets of the Scottish economy.