[vegabook]

430k a month is not "<strike>huge</strike>", it is a modest sum at best, and for 5m USD a year you can bet your bottom dollar that Visa/Mastercard will match/beat Amex. This is definitely not enough money for a big entity like Netflix to consider a strategic relationship which might subvert existential relationships.

[Artemis2]

Visa/MasterCard won't beat Amex for Amex cards. Amex can charge whatever they want because they completely own the card network (as opposed to transactions going through the traditional traditional interchange for Visa and MasterCard). Because of that you have to work with them to accept Amex cards, and while an acquirer can help, the only real way to save on fees is to work directly with Amex.