I think it's time that the seller started stating that this YouTube Channel is only popular because of him. It's a great YouTube Channel, very active and the very definition of premium. However, it became popular thanks to the main star (the seller). Without him (if he sells), the Channel will die. So, there is a predicament here. The seller rightfully wants a good offer for the activity, but the activity will be gone once he hands over the Channel. I think it's time to face the facts that you're better off keeping the Channel, seller. As no one will pay you for something that will die as soon as they buy it.