Their price has stayed exactly the same for the last 8 years while they've added more content....
I don't see an issue with it to be honest. I can't think of much else that hasn't increased in price in 8 years.
If all you want to do is play games online then you're paying extra for things you'll never use. Not to mention the majority of said content is either free on every other device/platform under the sun or requires an
addition subscription (Netflix). It's ridiculous IMO.
Considering Xbox Live is primarily a means by which to play your games online, pricing should reflect that, with anything else being optional. They're preying on people, knowing that they'll accept the price hike under the guise of inflation and added "features" because their online gaming is forcefully bundled in with it.