You're asking, so I guess I will lay out some reasons. 1) Choice fatigue. 2) The annoyance of wanting to watch a specific thing and then hunt it down, hoping

You're asking, so I guess I will lay out some reasons. 1) Choice fatigue. 2) The annoyance of wanting to watch a specific thing and then hunt it down, hoping it is on your service. 3) The costs (financial, time, irritation) of subscribing to multiple services to combat #2.