On scalability and memory footprint
Hoff: Arguing performance and scalability and footprint can be less than fruitful; a distraction.If you're serious about this, build your test cases, and benchmark.But before you invest here, ensure you have nothing better to do with your time, and ensure that the probable payback can be justified against the aggregate investment; against the costs of the testing and of the migration.  And nothing better to debate, for that matter.