Does anyone know what percentage of revenue from these machines merely
covers overheads? By overheads, I am thinking of:

i) Purchase/leasing and installation (depreciated over the estimated life of
the machine).
ii) Electricity
iii) Consumables (parts, paper for tickets etc).
iv) Repairs/fixing vandalism
v) Paying a team of people to drive around London in 20mpg top-of-the-range
Ford Focus estate cars to empty them
vi) Fraud (attaching devices etc to empty the machines of cash).
vii) Cleaning

The machines have very limited functionality (single trip tickets, one day
bus passes and that's it) so are not well used IMX. If TfL were commercially
aware, they could have added Travelcard functionality and the ability to pay
by credit/debit card, but they aren't so they didn't.

Chris