Oh absolutely. The business reasoning behind it is genius. They say 2% of their customer base are the only ones being affected. So say 10% of those have the option or motivation to change providers when the limit goes into effect...that's only 0.2% of their total customer base that they'll potentially lose. They'll save on bandwidth, then entice the rest of their customers to use THEIR on demand stuff instead of Netflix/Hulu/Etc, increasing their revenues in that area as well.
Trust me, even though I probably rarely get close to the 250gb limit, out of principle I would switch providers if I had the option, but I don't even have another DSL provider option in my area, much less fiber or cable provider.
The joys of living on the outskirts of town