Ouch, haven't gotten an email from them myself, but I'm currently grandfathered in on the 4 disc plan, at the 3 disc plan price. If you go to their site and go to the help section, it looks like they have the changed price levels for all of them:
Standard - 3 movies out a time for $21.99
Plus - 5 movies out a time for $33.99
Ultimate - 8 movies out at a time for $49.99
Economy - 2 movies out at a time (limit: 4 rentals per month) for $14.99
So it looks like the 3 disc plan goes up about $2. If they let me stay at 4 discs for that price, I'll probably stay. If they try making me drop to 3 discs, or go up to the 5 disc plan I'll probably drop them.
Besides, I haven't been getting the best value out of netflix lately anyways, because I'm over a hundred hours of watching behind on my tivos

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