Apparently, bees can carry about half their weight. The mass of a bee is about half a gram. So it's implied that a bee can carry about a quarter of a gram, or, and this is the important part, that four bees correctly harnessed can carry one gram, and hence four thousand bees can carry a kilogram.
A person weighs about 60kg, which means that it only takes a quarter of a million bees acting in unison to carry a person.
Now, 80 million bees plus honey is apparently worth about $10,000, which implies that, in the worst-case scenario of the honey being worthless, a million bees costs only about $125 - that's enough bees to carry four fairly light people, or two fatties.
And yet people still buy cars.