(Post padding is what some people do to make them look more credible by having a higher post count. Basically, you take multiple posts to say the same thing or do +1s etc. You did the opposite and responded to multiple posts in 1 post)
@Uri
The way it works with chase points is as follows:
Some cards have bonuses in certain categories, such as the Ink Cash in office supply stores or the Freedom in different quarterly ones.
These are no fee cards. However, they can only redeem the points at face value (.01/pt) But you can leave them on the card until you are ready to redeem it. You can then transfer it to a fee card like the sapphire reserve to redeem for 1.5x (.015/pt.) or the preferred for 1.25x. Or you can use the fee cards to transfer them to airline miles where you can sometimes get even better redemptions.
So, in short you don't need to open the fee card until you have close to the target amount of points necessary for the trip you want to take.
Amazon does not earn 5pts., but Staples does so if you buy Amazon gift cards in Staples and load them to your account, you will effectively be getting 5pts. on all Amazon purchases. like he said:
Thanks a lot for the explanation! I think I'll go with the Amazon store card. I don't want to have to use gift cards (or to have to buy them beforehand from Staples) every time I want to buy something.