Sports leagues (especially in the UK) are driving up costs spectacularly. I for one have stopped following different sports because the cost is out of control - not just for TV, but for tickets and other merchandise.
When I was younger, almost all Blue Jays games were free on Baton/CTV with the odd game on CBC or TSN (which was something like $7 extra for all the cable channels at the time). Now you can't even watch baseball (except for the odd game on FOX) without Sportsnet. I barely watch MLB anymore.
I barely watched the NFL as a kid - however, I can watch games on OTA for free now. I watch it all the time.
There are a lot of articles about the demise of boxing with the costs associated to watch it. I assume other sports will follow.
Once a sport gets to expensive, or convoluted (you have to subscribe to multiple pay channels to watch it) I give up on it. Indycar is a good example - use to watch every race. Try and find them this year without paying a fortune.
WWE (if you want to consider it a sport - I do since like gymnastics, it takes skill to put together a routine) has had ratings cut in half the last few years, but they are moving to FOX in the U.S. for a weekly show. It will be interesting if they bounce back. I for one may watch again.
Everything is changing at the moment anyways - DAZN will have more sports competitors, leagues are setting up there own OTT services, and even Facebook/Twitter has live games. OTT services like Netflix that are bleeding entertainment content may need to get sports rights to keep subscribers, and there will always be illegal ways to stream any of these services.
I hope we don't end up like the UK for sports - eventually, it will kill traditionally popular sports in Canada and new ones will emerge - but eventually go through the same cycle. In the UK, studies for various sports show that every year that passes, the average age goes up a year of the fans of those sports - that is not sustainable. The CFL has that problem in Canada - a league that is completely on paid subscription TV.
I know a lot of people enjoy sports, including myself - however, at one point you need to realize they are a business, and if you aren't getting value for what they are providing, you have to move on. Instead of "stealing" the games, sometimes you have to move onto a sport that treats fans better (for now...)