Debit card purchases to be capped at $50?

so basically its another ploy to get retailers to swipe check cards as credit.. PIN based debit yields the lowest fees on transactions to the merchant. Hence why rewards points programs only give points on non-pin transactions.

instead of a .75% + $0.25 per transaction (varies on processor) for a PIN/swipe

its 1.40-1.80% + $.xx per transaction (varies) to the merchant for credit swipe