If you decide you dont want to throw anything away forever you can grow pretty fast :) Some of the huge ones absolutely do binary storage for HA/DR reasons, bu

If you decide you dont want to throw anything away forever you can grow pretty fast :) Some of the huge ones absolutely do binary storage for HA/DR reasons, but payroll companies and realestate companies are the mainstay and they have a tendency to store a lot of XML crap on top of the lovely normalized rows.