Though it has never been officially made public, Amazon Prime has about 65 million members. I'm one of them. Amazon Prime is great. But I love the additional services that it provides beyond the free 2 day shipping. Amazon Video is just like Netflix. There is so much content to watch. PrimeNow is amazing too. Stuff gets delivered to my house within 2 hours. I can even order fresh produce and meat!
So recently, Walmart made an attempt to make a dent in the market share by opening up their marketplace to third parties. So far, their 3rd party items completely suck. Seriously, it's just a festival of price gouging and unrealistic markups. It is unregulated and unattended. In other words, it's a complete JOKE.