I don't see why people are complaining either. We all knew these plans were coming. If you wanted unlimited then you should have switched before July 7th. Otherwise just pick the one that will work best for what you use. I use about 4GB a month since switching to Verizon and the iPhone. So for me I'd pick the 5GB a month one if I had to and go on as I am now. And I stream music, video, netflix, HBO Go, email, facebook, twitter, google+, many things on Beejive, the internet, skype, google voice and so on and so forth. I think that people just need something to complain about. It's simple to figure out. You look at how much you have been using and then choose which plan best fits with that.
If carriers had started tiered data with the iPhone & Moto Droid, we would not have seen the growth of the smartphone like what has happened. It's an often used analogy but it's true "They're like drug dealers, they get you hooked for cheap and then raise the costs."
When there weren't things that required data as there is now, they were offering it free. Then they started pushing smartphones like there was no tomorrow (when was the last time you saw a non-smartphone commercial by Verizon, let alone any carrier), but left unlimited data in place.
Now that smartphones are everywhere they are limiting the amount of data available for the same cost as what was previously unlimited. For a person to get the same capacity as they had before, they'd be paying at least 2/3 more than they currently do for data.
Verizon is saying 95% of customers use less than 2GB. If that's the case then why the need to cap it? The reason is that they expect that customers will use more than they currently do in the future, and thus can get more profit when it happens. Upcoming services like Netflix, cloud based services, VOIP, etc., will require more data, and thus more profit for carriers.
Think of it like renting a car. Say you travel about 80 miles a day. Now say the rental company charges $50 a day with a 100 mile allotment. Then one day they decide to change the allotment to 20 miles because 95% of their customers drive less than that. Would that make you consider another company or other means of transportation?
The biggest contradiction is that with Verizon the only upgrade choices we currently have is either a 2 year contract or pay full retail (after they got rid of NE2, annual upgrades, and 1 year contracts). The reasoning Verizon used for eliminating old upgrade choices is that it's too confusing for the customer. But then Verizon takes their unlimited data (what could be less confusing than that) and forces you into caps. Now you have to monitor your data usage. Call me crazy, but I think picking between 5 upgrade options once a year is less confusing than monitoring your data every month.