Back when 56k modems first came out, some ISP's tried to charge more for the customers that connected to their new, shiny euqipment, on the basis they were using more data. Until they realized 56k customers got what they wanted faster, then logged off the system. So, the 56k modems could handle more of their customers in day, way more, so the ISP's stopped penalizing people for using them.
3G to 4G is a similar jump in access speed. This shows a fundamental lack of understanding of the ISP market by Verizon. They should be encouraging everyone to switch to 4G by offering unlimited data plans that are cheaper than 3G.
Guessing some marketing hack looked at the 5GB limit on "unlimited" data plans, and realized how little time it would take to hit 5BG with 4G, lol. Hint to the marketing hack, the solution is to raise the unlimited limit for 4G.