Vendor Lock-in. Proprietary Technology. Switching Costs. These phrases are thrown out there more often than they need to be, without real thought to what the concerns actually are. Asking the right questions is important. If you want some real functionality and technological strength for a price, prioritize that and do not confuse a proprietary & strong enclosed technology with a closed & rigid architecture. Everything, that is standard today, was once proprietary in our minds until it eventually became common, universal or functionally indispensable.