But 15 years later, Amazon is worth more than $900 billion, compared to just $33 billion for its old foe eBay, which spun off its (more valuable) payment division, PayPal. And the Amazon Prime membership program is perhaps the biggest reason why.
— Read on www.vox.com/recode/2019/5/3/18511544/amazon-prime-oral-history-jeff-bezos-one-day-shipping
In 2009, I remember an old friend, who had just retired from Amazon, telling us we should all be on prime at our high school reunion. I already was. BTW, she had retired well before she 50.