The problem for us is that as a consulting house, our staff turnover rate is high (as expected I suppose), and this doesn't work well with Tableau's named license model. We've run into troubles where we reassigned licenses after people either left projects using Tableau, or left our company altogether. They ended up forcing us to buy extra licenses, which I was unhappy with.

My stance since then has been to avoid buying more licenses. We're getting our team skilled up more on web-based viz, so we can reduce our dependence on desktop applications.