Interestingly, I don't care about rewards programs for the most part anymore. I order a lot of cigars so I do use the points they give me, but I don't go into debt for them (even if only temporarily) like I used to. I just bought sats with points I got toward the end of my credit card days. Do the same with the interest I still get on my fiat bill/job checking account.
Either way, it's all going into #Bitcoin. I don't know if that ultimately matters or not but it makes me smile.