[mercutio2]

Can you point to these studies?

Anyone who gives a 3% discount for cash will get cash from me, but I already have all my money in index funds. The effort to maximize points is “use this credit card, get the cash back”.

It’s really not that much effort, for rich people with excellent credit. It is of course a hugely regressive system, but that wasn’t the argument you made.

[jaza]

Alright alright, maybe not "various studies", but I read this article a few months ago: https://www.aureusfinancial.com.au/blog/title-are-credit-car...

[JustExAWS]

If you have a 2x points card and not cash back, you can still come out ahead with using a credit card over 3% cash back.