Re: Any point?
> streaming audio, maps, mail, Slack, Skype, news, weather, Google, basic browsing
Until you get into the demands of streaming video, if you're not really worried about latency, then 3G (assuming that includes the decent flavours of HSPA) is probably sufficient. Although I think you must be a very patient person because whenever I drop down to 3G websites can be very slow.
LTE should offer sub 10ms access times even after a bunch of timeouts have fired to free up network resources, 3G access times can get much longer as the basic access procedures are much more involved.
