4g

I've been looking at the price of 4G telecoms vs 3G telecoms. It all seems rather splendid, what with faster internet on the go, but I've noticed a few drawbacks:-

1. You need a new phone that is 4G/LTE compatible. So, £400 for a phone, or else pay for it over 2 years on a contract.
2. One of the best uses of having high speed is that if you want to get a really huge file (like a movie), it can come down much quicker. But, most of the contracts come with a piddly 1GB of data, and a movie is about 700MB of data, so if you get a movie, that's most of your data for the month gone. So it ain't much good as a facility for getting big files on the go, just small files more quickly, which isn't much of a perk.
3. The places its being rolled out in are the sort of towns and cities where you already can't move for McDonalds and Starbucks and Wetherspoons, so you can already get a decent wifi connection for the price of an espresso.

I'm sure this will become useful at some point, but well, it seems a bit redundant at the moment. Or can someone tell me what I'm missing?