If you are going to make an institutional
investment in cyberinfrastructure for humanities and social
sciences, as a university, you are obviously better off making that
investment once, and in a high-impact, high-profile way, than many
more times, with less impact, at a higher cost, across more units.
Aside from the economies-of-scale argument, there is an argument to
be made about the benefits of interdisciplinarity: it is still, in
most universities, a relatively rare thing for faculty in
humanities and social sciences to have ready access to compelling
opportunities for interdisciplinary collaboration within their own
institution.