[etha]

- It's hard to drop ten dollars cash on the other side of the country.

- You don't need a smartphone to use ten dollars you found on the ground.

- Cash can be spent somewhere other than Starbucks.

- There's no twitter account broadcasting the amount of money dropped on the ground.

- If you find money on the ground, chances are not good that it was dropped by someone from HN.

- If you tweet about money you found on the ground, you are just a jerk.