There is an individual thing in the AR deployment which exists for no technical purpose to get us a piece of paper issued by Rackspace which we need for legal reasons. That thing costs more than everything on this page combined. We have one part-time employee; she's 3X more expensive than that thing.
If you're put off by $80 for a database wait until you get quoted rent, insurance, taxes, accounting fees, any engagement with a professional, review of a customer's MSA to sell them an enterprise contract, healthcare for a single person, travel to a single conference, the wifi at the hotel for a single conference, etc etc.
Also: there is virtually no scenario under which a SaaS app grossing $Xk per month has a better financial or technical outcome by working on minimizing expenses when you could be working on selling more accounts and selling better accounts.