Ask HN - How is Amazon able to afford the 79$ price point for Prime?
May be they can absorb this cost from increased business, but retail margins are thin, correct?
May be they can absorb this cost from increased business, but retail margins are thin, correct?
Additionally, Amazon has significant deals with their shipping carrier for the mass quantity of things they ship out. This reduces their shipping costs.
The other component that reduces their shipping cost is the warehouse locations. Newegg used to (still does?) aim to get their packages delivered in 2 days. Their warehouses were strategically set up for that, and even if you ordered 3 day shipping you could get it in 2 days, it just wasn't guaranteed. I'm sure Amazon's warehouse layout is similar where most items reasonably get to their location in 2 days via cheaper shipping, and they can just pay for the extra SLA for the packages that might not.
Ups actually offers insane bulk shipping discounts with huge retailers like amazon and newegg. The amount basically ends up looking like a quarterly fee on the balance sheets.
Then amazon uses fixed shipping costs for all their 'amazon fulfilled' items with few maxing out the base cost, this means that they may net anywhere from 0% to 90% profit on their shipping of each item depending on where it's going.
I'm fairly sure that at the $79 price point was chosen so that if every single customer switched to prime, they would still run a positive balance on shipping.
There's also a TOS, maybe they have some loopholes - http://www.amazon.com/gp/help/customer/display.html/ref=hp_p...
They don't guarantee squat, and not everything is eligible. Also, they can terminate the contract and give you a refund.
I'm guessing that it's pretty rare though. Most people will either buy lots of stuff (Amazon's happy), or not buy lots of stuff (Amazon's happy).