I think one cool feature Medium can introduce is enterprise permissioning. If you have an enterprise plan and pay Medium oodles of money, you should maintain your own permissioning control and who sees your articles while still having access to the Medium social network. Best of both worlds.
Medium isn't worth oodles, though. Looking at Squarespace and Wordpress pricing, for a company's tech blog, it's worth $25-$100 per month. Unless there's value from the Medium brand...
