They still have valuable data, they collect how interesting something is, so you're even contributing to the algorithm and you essentially advertise videos you're watching to other users with similar interests on the platform.
People without adblock will come plenty.
That ad blocking on Youtube makes you a worthless user for anyone on there is just not true.
The advantage of scraping is that it can't be really blocked if you make your private instance and you don't have to follow API ToS, the disadvantage is that it can easily break with little changes of the Youtube UI.
For anything flash storage, Samsung is the GOAT