Having them all reinvent the wheel would be a security nightmare. I agree, it absolutely makes sense from a business and security perspective, but at the end o

Having them all reinvent the wheel would be a security nightmare. I agree, it absolutely makes sense from a business and security perspective, but at the end of the day what you end up with are a few key players who represent a centralized point of failure for spending your bitcoins on mainstream goods and services. More and more, the community is moving away from decentralization, relying instead on these centralized services to facilitate bitcoin purchases and off-chain transactions. The more companies that jump on board with bitpay and similar services, the bigger the disruption will become when one of these companies inevitably hiccups, fails, or gets hacked.