In the study you say you have yet to see an effective large enterprise rollout of SharePoint. I have heard from several large companies that would say they've rolled out SharePoint. I saw several large companies at SharePoint 2008. Del Monte, Mckesson and General Mills to name a few. I will tell you the biggest issue I have seen is with the security model dealing with access to sites. I do agree that there are better products but I haven't seen products packaged as well as SharePoint.