Price: $139 a year or $14.99 a month (discount possible for government-assistance recipients).
My take: It costs a lot, but you get a lot, starting with fast, free shipping, including one-day and same-day delivery. You also get Prime Day deals; Whole Foods Market discounts; free music, videos, books and games; and a half-price annual membership in the Amazon-owned One Medical service (appointments are extra).