At least here in the USA, one could definitely get an Amex credit card for "free"
The US Costco AMEX was free as well but, since it was coupled with a Costco membership, there was that annual charge. As with the current Visa offering, one does have the option of opting for the Executive membership without the card if they prefer.
Yea, that's a nice feature. My wife's card is tied to the same Costco membership as mine but is otherwise a completely autonomous account. The Citibank Visa they now use also offers this feature but I think AMEX was doing it years before anyone else.One additional nice thing I like about Amex is they actually give separate account numbers for additional cards linked to the primary account (unlike all other credit card issuers)... and each of them can have its own online access w/ info specific to each.