Another factor is that, while I travel less than I used to, I do like the schedule deliveries around being at home. Although package theft is not really a factor where I live, I also don't want my mailbox getting overstuffed or a package potentially sitting out in the elements for a week. As a result, I don't lke to order things with an indeterminate delivery if I might have travel coming up. (Which used to be a LOT.)