I do not think that there are any tricks

They offer it because they make money on it. Most people with rack up interest charges and that is how it is worth it for them. Most people spend more because they justify it in their head and that is why they can afford to do this. They do follow through with giving you the points. I did it and there were no tricks.

Like I said, I do it. The only negative is the annual rate, but I know that I save more than that with our yearly trip to see family. Since all of our extended family is on the other side of the country, we really feel that this is a must expense for us.

It will make you spend more

because you will justify the spending in order to get the free ticket. Now, IF you only do utilities, gas, etc and not eating out or that other stuff, do it carefully, also, you can cancel the card if you take the trip before the year is up and not pay the $99. We have done this with several card and it worked. We did it for Southwest and Amex to get 48,000 points we used at a Hyatt. But we have the money in the bank already to pay for the charges. At least Southwest is one of the easiest airlines to get free tickets one.