From my experience as a long time investor in PFE, I personally don't believe that PFE, even with its current cash horde, will ante up the amount you are talking about to buy out GILD or any other company . It is just simply not PFE's style of doing business. PFE is indeed interested in establishing a presence in biotechnology as well as stem cell research but probably more along the lines of a joint venture, university alliances, or some other avenue that does not involve a huge exchange of 'up front' cash. I suppose that mergers, as opposed to buyouts, under certain conditions, are also of possible interest to PFE. Mind you, these comments are just my personal opinion.