Running your own stuff becomes more expensive when you want monitoring, Load Balancers, HA, VPN&#x27;s into your corporate network and constant database backups. And then making it really robust.<p>Hiring all the staff for that can be expensive.<p>Problem is there are lot of developers who think setting up a virtual machine putting a db on it, and then a webserver on another without thinking about all the other stuff that can go wrong.