Don't be a Slave to Your Vendors
One of the reasons I like and support the use of open source software is that you can avoid most of the drama that comes from relying on 3rd party vendors. By this I mean.. you must pay exorbitant sums for ongoing maintenance, you are locked into their product upgrade treadmill, you have little say in the direction of their products, you have a single source for support, and if your vendor gets acquired there is a very good chance the product you depend on will go away or change in ways that force you to abandon it with even more pain. I’ve seen this play out from both sides of the table having spent time in both enterprise environments and working for software companies.