Personally, I don't see the benefit in withholding the advance notice.
I'm not much of an impulse buyer, and it makes me less likely to order.
I'll miss having the time to read item reviews here and at other sites, compare prices, make calls to check whether someone might be interested in this item as a gift, etc.
I remember the griping threads when they switched to giving TSVs advance notice.
My turn to gripe now. Lol!