True - but the backend analytics system can be Excel :) which it often is. In fact in my "two person startup" (that was alive happily for 5 years) this is exact

True - but the backend analytics system can be Excel :) which it often is. In fact in my "two person startup" (that was alive happily for 5 years) this is exactly what I did :). I do take your point, however. I still think it's wise to not have an admin backend that runs rollups on your live system (which we've all done).