New York - Amazon is clearly entering its Prime. Meaning, of course, its $100 annual membership program, now a decade old, which has accomplished the remarkable feat of convincing millions of people to pay an annual fee for the privilege of, well, shopping.

Prime is now central to Amazon’s strategy of dominating the world of commerce. What started as a yearly fee for free two-day shipping now offers a sometimes bewildering array of perks, including household product subscriptions, one and two hour Prime Now delivery, streaming music and video, e-books, groceries (for an additional $200 a year), photo storage and more.

“Prime has become an all-you-can-eat, physical-digital hybrid,” Amazon founder and CEO Jeff Bezos wrote in his annual shareholder letter in April. He wants the service to be such a good deal that you’d be “irresponsible” not to sign up, he wrote.

Why the emphasis on Prime? Simply put, members of the loyalty program shop more frequently and spend more money, analysts say.... Read More: VIN