It's BA againSounds like Black Adder again.
They are talking about Raleigh selling "potatoes",(I forgotten this scene, so potatoes may be a metaphor) and from the profits he is able to buy "country estates, fine carriages and as many girls as his tongue can cope with. He's making a fortune out of the things."
The funny line is "they'll be eating them next" - to Raleigh the potato is a profit item, to everyone else it's something to eat.
Let's update it a bit:
To you it's a computer program, to me it's a computer program.
But to Bill Gates programs are country estates, fine carriages
and as many girls as his tongue can cope with. He's making a fortune out of programs.
People will be building houses with computer programs.
They'll actually be using them to type letters!!!
All double-meaning, the last line is ironic.
Very Black Adder.