[mfrommil]

>> I'd say the biggest cost is probably hiring a decent Engineering+Product+Test team

Part of it is cost, but a lot is culture and leadership. Streaming (especially live) is one of the toughest areas to maintain a good user experience. I've led Streaming Product teams for years. Product teams almost always needs to deliver growth, which comes in the form of new features, monetization, and other changes. But the user cares most about the core experience - did the video start playing without a delay? Were there buffering issues? Audio playback out of sync? Issues are very noticeable, and sometimes very difficult to test proactively for. Product needs to find this balance, and can not go 100% all in on growth and neglect the not sexy stuff. If the whole Product/Engineering/Test org is not aligned on stability/QoE being a top priority, it can degrade very quickly after a few releases for a streaming app.