Another point - Bloomberg by an large doesn't fail. This isn't some consumer "build fast, break things, and iterate" model. I can remember one time in my two decades using Bloomberg that something broke. For half a day this year the IB chat system went down. The world of finance practically ground to a halt. But that was the wild exception. Compared to most platforms Bloomberg may be a bit archaic but it is rock solid and thats way more important when you have billions on the line in realtime.