I'm of two minds here -- first, if you don't like their product, don't use it. There are *plenty* of good alternatives...

But on the other hand, I feel like at times these things are predatory -- not so much on the cancelling cards out of hand, but more on the "change interest rates underlying existing customers" thing.

In the end, I think credit cards are an awesome tool that are frequently/typically mis-understood by the average consumer, so they amount to yet another poor/stupid tax. Add Lotto, payday-loans, and most internet scams to that as well.