Early next year, iPhone owners that buy Apple Watch will be amongst those numbers.
Late next year, those who upgrade to the next iPhone from an iPhone 5 or earlier will add to the numbers.
Whose to say that Apple Pay won't open up to Canada and other countries next year, and add those owners to the ranks?
Regardless, I'd say that to bet against Apple's ability to market to their enthusiastic customers is not an astute move. And when an MCX member merchant is breached next year, the first question I will have is: Was CurrentC participant bank account info breached?
Give my bank account info to the all-too-porous merchants? I think not. At least with a credit card it's not my money being stolen and with my debit card there's a maximum amount that can be taken before fraud protections kick in. With my bank account info there's the potential for a criminal to steal large chunks of money.
Lastly, consider this: MCX's members that disable NFC are not only affecting Apple Pay customers, but Google Wallet customers as well - so they are potentially alienating essentially every customer with a smartphone just as contactless payments are starting to get a lot of publicity and mindshare. Any way you slice it, this is a pretty stupid move.