As you may have guessed from previous answers, not all YouTube comments are the same. Actually, they are very different as you may find one provider selling them for very low prices while others charge twice more for the same amount of comments. Why this happens?
Well basically, their quality differs a lot. You may buy cheap low quality comments which come from spammy people who are not real users. While on the other hand, you can buy YouTube comments that are high quality and that come from real people that use YouTube on a daily basis. That’s why their pricing differs so much.
We would always suggest to go only with high quality comments as low quality comments only increase the amount of comments you get and nothing more.