Quoted from Deez:

You've got it all mixed up. The only stupid people are the ones spending more than they make and making an interest payment. I have never in my life paid a cent of interest or a fee to a credit card company. Unless you live in a cave and never touch technology the companies already know your habits better than you do. You might as well get paid for giving up that information with credit card points since you really have no choice.
Furthermore, people in credit card debt aren't victims like you're alluding to. They did it to themselves through lack of self-control. If you can't handle the temptation of a credit card then by all means you shouldn't use one, but credit cards have a huge benefit to those that are financially responsible. Also, the cost of the bonus points are shared by the business that pay a fee to accept the credit card and the people up to their eyeballs in credit card debt not from the sale of your information.

Quoted from Fezmid:

He said he's never paid a cent of interest to a CREDIT CARD company, nothing about cars and houses as that's a different beast. I'm in the same boat he is -- I've never paid a cent of credit card interest and I use the card for everything (my wife once used the card on a 60 cent cookie cutter, true story...). It actually helps me track my spending because I import all of my data into Quicken for easy analysis. I can tell you how much I spent eating lunch at restaurants in Q3 of 2014 if I want. It's great for reviewing spending changes and finding areas to spend less in so you have more money to buy pins.

PayPal the first time, and a personal check the second... I guess my sellers were trusting, and I appreciate it (since they had to ship both of them). (I realize I'm the outlier here though).