That's why I wrote "naively". I know it's more complicated than I made it sound. It's the same with companies using mainframes, after a while you are so deeply

That's why I wrote "naively". I know it's more complicated than I made it sound. It's the same with companies using mainframes, after a while you are so deeply invested (both financially and technically) that migrating might be more expensive than just feeding the corporate machine. Still, depending on a vendor that treats their customers as rudely as Oracle does must be really annoying.