I'll start this comment by saying that Primal does NOT offer great prices on bitcoin. However, if you can find a credit card that allows you to purchase gift cards you can purchase a Google Play store gift card. You can use that point balance purchase sats from Primal. If your credit card offers strong cash back (which the one in using does). You can get Sats back at a MUCH higher rate than any other "official" Bitcoin Rewards. I can probably stack $100/month free (before Primal fees) WITHOUT increasing my family spending. Just using a different credit card. If necessary you could also use this method to turn that gift card balance into cash if you needed to sell some sats (not advised...)