Hi all, first post here from a long time lurker. This year, I was finally able to get approved for the Chase SP card. I was wondering if there was any benefit to joining any other transferrable points program (ie. Amex everyday, ThankYou points)? I have the United MilePlus Explorer as well, but am thinking of canceling that if its a good idea to join another program. To give you all a background on my spending, I'm a graduate student, so not too high spending but I travel between Boston and California decently frequently. I also use Amtrak a bunch.

If I should join another points program, should I go with the Southwest card with their current signup bonus or the Citi AAdvantage?

Thanks in advance for your help!