In an ideal world, sure, but as it stands today, purchasing an item for $5, $50, or $5000 is the same cost regardless if you pay cash, debit, or credit.

Does it suck that a small business can't accept cash at a discount if they accept credit, due to merchant rules? Yes, I'm sure it does, but as a purchaser, I can get rewards for using a piece of plastic vs paper money?

I acknowledge and agree with the principle though -- no single snowflake.