We gave up our Sky service last year. We were paying around £35 a month to access the basic HD channels (no sports, no Sky movies). We had Netflix at the time, but now with adding NowTV and Prime (I am a student, so it's super cheap, but even full price it can be a bargain) and using our old Sky box for Freesat from Sky, we are paying less and getting more. There are actually better options for Freesat or Freeview receivers, but since we had the box already, we kept it.
You can pick up prepaid NowTv cards for the Entertainment and Movie services that will make it cheaper. When it comes to content, the Entertainment pass is probably the most used, but it's nice to catch a sort of recently released film on the movie pass.
As for Netflix, the value lies in its original content or things like "Breaking Bad" that they picked up that the UK market dropped or never bothered with. "House of Cards", "Orange is the New Black", "Jessica Jones", "Unbreakable" to name a few. There are also some decent films on there, but you have to look for them, and depending on the format you're watching it on, they can be hard to find. There are a few sites that monitor the coming and going of content on Netflix, so you can see what you need to watch before it goes. As for geolocation workarounds, we did that for a while, but we don't bother any more. There are loads more movies on the American Netflix, but it was too much of a bother.
As for accessing the various apps, we have a NowTV box (I wouldn't recommend the old one although the newer one might not be so underpowered) and a Fire stick. Our game console died, but we used to use that for most of our apps. NowTV and Netflix work on practically everything, but you sort of do have to do some research to make sure, especially if you want to use catchup services like All4 or ITV player. If you only have one HDMI slot and want to switch between different hardware, just be careful swapping them. Both the TV and the extra item can be damaged by hotswapping (unplugging them when they are both on). Most modern tellies have more than one, plus they often have smart features which cut down on the number of apps you need to find from a streamer.
We're really happy with the amount of content we get, but there are drawbacks to going mostly streaming. You need a good, reliable internet connection, and you really need more than one service if you're more than an hour or two a week telly/film watcher.