I think people really take this cash is king literally. Of course you can use credit and earn rewards, buy a house with a cheap mortgage (or multiple homes even.) Cash is king if you know how to use it properly. These credit programs are great for people WITH CASH. The truth is, you can look at many historical charts, people end up in debt and aren’t financially as responsible in many cases. Of course there are exceptions. If you think of it as ONLY using cash, you’re obviously not thinking about it correctly.