Do you have any tips on how to run the campaigns? I set mine to 0,01 as suggested somewhere else but got like 1 sub from a 1000 views. Do you promote video or do you create keyword campaigns as well?
I've tested everything under the sun.
Some playlists and videos convert better into subs, while other convert better into earned views. Our earned views range from 10% to almost 100% depending on videos.
Same for sub acquisition cost. Some videos convert subs at $2.12 (the lowest), some at $10 per sub (which is what you got).
There's really no way to predict what viewers will like, you just have to test different videos, at different time, to different targets, and see what works for your content.
I always have keywords, which are simply my tags.
I may target a channel, such as a channel that has the same types of videos that I am running ads for, as long as the videos on that channel are still getting traffic (check statistics under their video if they have it enabled to get an idea of their traffic).
I promote individual videos and/or playlists with several videos and distribute the campaign $ across the videos.
I've also tried promoting my highest retention video, highest view count videos, lowest view count videos to boost them, and lowest retention to get a higher retention from Adwords than from native viewers.