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Is Amazon's offer of a $50 gift card a scam?
The most likely reason for this card is that Amazon has an arrangement with the issuer (I believe that that used to be Chase; may have changed since).  Such an arrangement may allow Amazon to take the risk of chargebacks, etc. in return for the issuer handling the mechanics of billing.  This is advantageous for Amazon, as otherwise they are subject to both their own procedures and those of the issuer.  Amazon would rather take the entire risk than share it with someone else who charges for the privilege.   Fees for processing credit cards can be as much as 5%, although 1-2% is more typical.  Due to its size, Amazon may already have negotiated fees lower than 1%.  But even so, any savings they make are to their benefit.  Further, now they can get a share of the fees charged to other merchants.  For example, if you buy a book from Barnes & Noble (an Amazon competitor) with the Amazon card, then Amazon gets some money in return, say 1% of the transaction.   If the price is the same on Amazon and at Barnes & Noble, you can actually save money with the Amazon card.  Amazon gives more "cash back" in the form of gift card balance for an Amazon purchase.  So the card may mean that you buy from Amazon when you might otherwise have chosen someone else.  If we again assume a 20% margin, they only need $200 of additional purchases to make $40 of profit.  Someone who buys $1000 additional on the Amazon site makes them $200 of profit.  They're over $160 ahead.   Also note that Amazon is only giving you a gift card, which you have to use on Amazon.  And it's difficult to spend exactly $50.  As a practical matter, most people will buy, say, $60, with $10 of that money.  So they sell you $48 of merchandise (their cost, assuming a 20% margin) for $10.  They lost $38 on that transaction, but they've lured you into a long term relationship that may return more than that.  And they didn't lose the $50 you gained.  They only lost $38.   Think about it as a marketing cost.  Amazon is willing to pay $38 for a long term relationship with you.  From their perspective, doing so in such a way that you come out $50 ahead (assuming you would have made the same purchases without this), is a win-win.  Because once they have that relationship, they can leverage it to give them savings elsewhere.   This is Amazon's approach in general.  Originally all their products were drop shipped (from someone like Ingram Micro).  They handled the web site and billing while the drop shipper handled inventory and shipping.  Then Amazon added their own warehouses.  Now they can do all that separately.   This is just the same thing for buyers.  Amazon manages all the risk of the transaction and thus gets all the profit.  Because Amazon is managing the credit card risk, they have access to all the credit history.  This helps them better determine if that sudden shipment of a $2000 camera to Thailand is a real transaction (you're a photographer who regularly vacations in Thailand) or a fake (you've never been to Thailand in your life and your phone is camera enough).  That additional information may itself be worth enough to make the relationship profitable for Amazon.   Amazon certainly gets something out of the relationship.  You give them money.  And you are likely to give them more money with the Amazon card than they would otherwise receive.  But you get products in return.  Is that a good deal?  If you prefer having the products to the money, then yes.   Others have suggested that it's the irresponsible credit card users that generate the real profit.  I disagree.  They generate more revenue in the short term, but then they overspend and declare bankruptcy.  Then Amazon loses its money.  Yes, they get more interest and fees in that case, but if they lose $1000, they needed to make $1000 in profit just to break even.  It's safer to make the smaller short term profits with responsible customers who will continue to be customers for the long term.   A steady profit of $100 or $200 a year is better than a one time profit of $500 followed by a loss of $1000 followed by nothing for ten years.   Anyway, your question was if you should sign up for the card.  If you are planning on doing a lot of shopping on Amazon, you might as well.  It gives you cash back.  If shopping on Amazon is inconvenient, then perhaps that outweighs the advantage of the card.  The "cash back" is just Amazon money.  You can't spend it anywhere but Amazon.  If each transaction gives you a little bit of Amazon money, you have to keep going back to spend it.