Where do the phones go?

Im super curious what all these youtube unboxing channels do with all the phones after their videos? Its real stressful seeing channels like jerry rig and all those durability test channels that just create waste, when they could be donating them instead of destroying them? Does anyone know? I get in that case its for views, but do unboxing channels just have a plethora of brand new phones laying around?

EDIT: looking for helpful answers from someone who is or knows someone that has answer.