Same thing's been happening to me; I watch videos from a successful person in a hobby I like. The content's good because he genuinely enjoys the area. However, recently there's been videos about gear and nutrition, and the product name and praise is a LITTLE too obvious for comfort. Though my initial reaction was 'wow those seem like great products, I should check them out'. There's a camaraderie and intimacy that's gathered when you watch someone's videos, and I feel like it's little different from product marketing of celebs though a little more subverted since it's newer and less regulated.