> Amazon does this when not defaulting to free 5-7 day ground shipping after promising free shipping prior to putting it in cart If you have the $79/year Amazo

> Amazon does this when not defaulting to free 5-7 day ground shipping after promising free shipping prior to putting it in cart If you have the $79/year Amazon Prime subscription, then they _do_ default to the "free" 2-day shipping on eligible orders. I don't think they're trying to optimize the flow for occasional shoppers.