Self-hosting is one of those things that makes sense when you can control all of the variables. For example, can you stop the developers from using obscure features of the db, that suddenly become deprecated, causing you to need to do a manual rolling back while they fix the code? A one-button UI to do that might be very handy. Can you stop your IT department from breaking the VPN, preventing you from logging into the db box at exactly the wrong time? Having it all in a UI that routes around IT's fat fingers might be helpful.