Some interesting points...While it's perfectly legit and can make sense to d/l 3-5gigs a month, remember the average user is still only doing like 400megs a month. For the most part, for such people to hit 2+ gigs they have to start shifting usage away from wifi/broadband and it's not unreasonable for VZW to want to charge them for that.
Just based on being 12x faster on average, LTE should have at least that much more capacity, correct? And maybe more like 20x. VZW has about 25M smartphone users, so even if everyone on the network had a smartphone that's only @4x the users. If they had the entire US that would only be 12x the users.
Will be interesting to see what they do as it appears they are going to take pricing leadership. Looks like the capacity is going to be there with LTE, so not sure why they need to limit usage, unless they are eyeing taking some share from home broadband. Speed tiers are kind of a joke, but I'm sure they're going with that at least.