Well that explains a lot. Historically, the basic idea as I understood it was that you could have the software for free (CentOS) and they didn't really mind because they knew they were selling support. If the support is worthless, then they have to try and squeeze money out of the software, which explains their behavior.
Dumping? This is IBM we're talking about. They'll ratchet up the price to fewer and fewer customers, trying to keep themselves in that pocket where they're too useful and expensive to move away from, but still able to hold the irons to their customers.
