Almost unbelievable, but I know it's true.
Card instead of cash, appears to be King nowadays.
Which could have some profound effects on Punting for several reasons :-
1. The SPs won't want to have the machines, and therefore have a provable record of earnings for HMRC to take their cut.
2. Reduce SPs client base - so much easier for the "other half" to see exactly what you've been up to when a transaction for "Delightful Debbie" pops up on the bank statement!
3. Risk of fraud on your Bank account - would you trust a card reader in the hands of a prossie, never mind if Sergei and his mates get hold of it?