I always liked dealing with cold, hard fake cash. It gave a tangible feeling to "learning" about money management as a kid. We truly are moving towards a credit driven society when Monopoly gets a cash card.
Monopoly Replaces Cash with Visa
"Monopoly board game players can now pay for properties with debit cards. Game makers Parker have phased out the standard multi-coloured cash in a new version. Players will instead use a Visa mock debit card to keep track of how much they win or lose... The new electronic Monopoly reflects the changing nature of society and the advancement of technology."
And on a separate rant that wasn't worthy of it's own post...
I hate websites that don't correctly setup their DNS records so that BOTH www.xyz.com and xyz.com work.