Even without a prime now credit for slow shipping you're still getting free money of some value, that's a deal no matter how you cut it
Yeah, but if you don't want or need soda, spending something like $24 on 5 2 liter bottles after tax, shipping, tip, CRV really isn't worth it, especially if you're just in it for the credit. If you give zero fucks about soda, you'd be better off buying a $20 credit than buying $24 in soda you probably won't drink.
For people that do want soda, and aren't dumb about shopping, they know they can buy 2 liter bottles of 7-Up and Dr. Pepper for less than a dollar, sometime even $0.70 a bottle, from their super markets. For an actual cheap ass gamer, spending $2/bottle or $6/12 pack is just absurd. I can buy a $20 credit for PSN and take that $4 to Vons or Ralphs and pick up 5 2 liter bottles of soda, and still have some money left over.
This is a deal for people who already spend $15/month on Amazon Fresh and frequently order $50 in food (otherwise they're going to have to pay a $10 delivery fee, which just makes the deal worse), and who probably don't care about food prices. Those aren't cheap ass gamers. I imagine the actual cheap ass gamers who have saved up a bunch of credits to cover the cost of this are few and far between.