Three things. First, the MCX is clearly driven by the desire of the retailers to avoid the processing fees from credit cards. It only works with store cards or your checking/savings account...
Totally on target here. MCX gives the retailer that 2.5% back the credit card companies take each time and supposedly is much freer with giving the retailers access to customer data as well...and ApplePay keeps that 2.5% charge in place.
With Best Buy, its a little hard to see - although that 2.5% take adds up fast for expensive electronic things purchases...so I could see the allure.
MCX also works with existing phones, from what I understand it makes a scan-able bar code image on your phone's display that is "scanned" by the register checkout...the downside is its not ready yet. But it could roll out to a much larger client base quickly.
As a consumer, I prefer Apple's idea.
... Sounds like Walmart are cheaping out on their card readers.
No, I think Walmart wants get rid of that 2.5% charge the credit card companies take (and ApplePay preserves) - MCX does get rid of it. Considering the clientelle that will have ApplePay, I'd guess they'll reconsider in a year or two though.