It appears that we are doing nothing new, but perhaps the fees have dropped
“We will leave a steam engine free of charge to you. We will install these and will
take over for five years the customer service. We guarantee you that the coal for
the machine costs less, than you must spend at present at fodder on the
horses, which do the same work. And everything that we require of you, is that you
give us a third of the money, which you save.” [James Watt, 1736-1819]