Most things I watch are 7-10 minutes. I have a healthy subscription list of new content almost daily. I watch minimum 30-60 minutes of YouTube a day, more on weekends and holidays.
Additionally YouTube already has my payment information and I already use it to rent movies (via the Play Store, which plays on YouTube).
I don't use AdBlock because I want to support the people who I watch. If I block the ads they have to go get a job and they stop producing original content which I enjoy watching.
I won't claim I would definitely get a YouTube subscription, but I'd consider it (devil is in the details and all that). If it meant I was funding people who I watch daily better (a la Reddit Gold) I very well might.
It's the ads I watch for a video I regret having clicked on that cause me to block everything first, whitelist later.
So with a paid no-ad subscription, it would mean I'm indirectly supporting the videos I've seen which I don't feel deserve my support.
You need to actually buy the advertised products in order to "support" the producer. Otherwise the ad has been wasted on you and the advertiser might of well have not paid for it.
So if you don't actually buy the advertised goods or services the ads have no value to the advertiser and they should stop using them, at least on you (and will if they are able to measure the effect).
Therefore viewing an ad for something you are not going to buy is just trying to fool the advertiser into giving money to the producer. So if you think not view ads is "stealing" from the producer then viewing them but not buying the products is "stealing" from the advertiser.
Why? To build up brand recognition using the cream of the crop videos we produce (and in our case subscribers). It's a slow process but it'd be a lot slower without putting up ads.
In a purely money sense though I guess I'd rather no adblock using users see the ads I put up, there's no way they'll ever see any future ads as subscribers anyway and I'd lose out in the long run
One example I've been following: https://www.youtube.com/user/eevblog
Just skimming through my subscription list and ignoring the video game and music-related stuff for examples:
Alton Brown - https://www.youtube.com/channel/UCfDNi1aEljAQ17mUrfUjkvg
FliteTest (RC planes/multirotors) - https://www.youtube.com/channel/UCfDNi1aEljAQ17mUrfUjkvg
Munchies (Vice's food channel) - https://www.youtube.com/channel/UCaLfMkkHhSA_LaCta0BzyhQ
Smarter Every Day (science) - https://www.youtube.com/channel/UC6107grRI4m0o2-emgoDnAA
Veritasium (science) - https://www.youtube.com/channel/UCHnyfMqiRRG1u-2MsSQLbXA
Vsauce (random interesting information) - https://www.youtube.com/channel/UC6nSFpj9HTCZ5t-N3Rm3-HA
Numberphile (mathematics) - https://www.youtube.com/user/numberphile
The Fast Lane (cars) - https://www.youtube.com/channel/UC6S0jAvcapqJ48ZzLfva12g
Regular Car Reviews (cars/comedy) - https://www.youtube.com/channel/UCo1pShh6dtg-T_ZZkgi_JDQ
Every Frame a Painting (film analysis) - https://www.youtube.com/channel/UCjFqcJQXGZ6T6sxyFB-5i6A
Wisecrack/Thug Notes (comedy/educational) - https://www.youtube.com/channel/UC6-ymYjG0SU0jUWnWh9ZzEQ
I've found that most hobbies usually have at least a couple of channels that regularly put out great content. I don't have any problem coming up with an hour or two worth of solid content that actually interests me when I wind down most nights.