It turns out that because it's Trump's plane and done up with typically Trumpian over-the-top luxury it actually seats very few people. That means the Secret Service detail makes up well over half the people flying on the plane.
What does that mean?
Well, that means you the taxpayer are now picking up the tab for at least 78% of the costs of the jet Trump flies around in. Huffpo estimates that the total the US government will pay to run Trump's jet will hit $3 million by election day.
As a point of comparison, that will be almost twice what the Secret Service paid to the Romney campaign for the costs of travel. Romney's plane seated 150; Trump's seats 43 or possibly fewer. When the plane can only seat that many people, most are going to be security.
Why the difference? Again, Romney - and every other candidate for decades - chartered a normal jet. But Trump is flying around in a Trump mansion in the air. So much of the plane is taken up on gold plated bathrooms, a full bedroom suite, a media room and so forth that the security detail makes up most of the remaining people on the plane. And that means you pay for Trump's plane, or at least about 3/4s of it.
If that's not good enough, since the plane is actually owned by a Trump business, the cost of the travel nets a profit that goes to Trump. Excited now? Me too.