Both Netflix AND the ISP save tons of upstream bandwidth.
Or, without neutrality, ISP throttles the hell out of Netflix and zero rates CrapeeStreaming (a wholly owned subsidiary) and gives their customers the middle finger suggesting they go back to dial-up if they don't like it.
Actually, zero rating is specifically permitted in the net neutrality regs. And folks forget, the reason comcast was throttling netflix was because they were overloading a public gig-e link in order to get to part of the comcast network. netflix didn't have a direct peerage agreement with comcast back then, nor did their ISP. (which is how ISPs get paid for sinking traffic, BTW). the bottom line is, that model has worked well since day 1. It only appears unfair if you don't understand that it does, in fact, cost money to carry someone's traffic, and the 'no cost' peering arrangements are predicated on the idea that the traffic flow is fairly even. pretty much every peering contract I've ever seen sets forth penalties and fees if your traffic starts going too much in one direction or the other, because at that point, one is using the link as a transit connection, which requires payment. Only folks who don't understand this seem to think that comcast was 'out to get' netflix.
With your bare hands?!?