Ok for mortgage but I had in mind getting better credit cards in order to get rewards. I do want to give these companies what they want so I can get better rewa

Ok for mortgage but I had in mind getting better credit cards in order to get rewards. I do want to give these companies what they want so I can get better rewards. I'm not saying the trade-off is worth it for everyone, I'm just saying there's a trade-off, unlike in advertising.