But worries over cost might be overblown.
"As long as the retailer is upgrading to the new payment terminals, which are enabled with contactless payment technology, there is very little additional cost to accept Apple Pay," Ian Drysdale, executive vice president of payment processing company Elavon, told Reuters.
If a retailer has modern technology in place, a massive upgrade wouldn't be required to support Apple Pay. An old-school back-end system would be expensive to modernize, but then, a retailer would likely have bigger problems to deal with in that case than mobile payments.
People can use Apple Pay at more than 700,000 locations nationwide, and with four of the top 100 retailers reportedly planning to embrace the service in the next year, that number will continue to grow--though perhaps just more slowly than Apple would like.
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