The Salesforce Train Keeps Rolling has a nice observation about why Salesforce is so darn interesting. (Emphasis mine.)

Salesforce has developed a full function business software utility, and with it an economy or ecosystem of builders, buyers, and sellers that spans the planet. Good for them, but now the hard part starts.Up to now, the market and Salesforce have been focused on replacing the tired infrastructure that supported building and buying software licenses. With that out of the way, much more attention will need to be focused on leveraging software to do better business. The next big challenge that I see involves business process management. Software had been a limiting factor for many business processes, in part because the process and practices were inextricably tied together. In the future, process and practice will be separate and a door will open for a different kind of IT or business consulting. It is now time for software companies to change focus to take advantage of the new opportunities.

Amen!