When the Department of Defense decides it needs space near the President when he's back at his Trump Tower residence in New York (to stash the nuclear football, and for other, unmentioned services), the President himself stands to actually make a few bucks on the deal by leasing them the space for a cool $1.5 million a year.
Presidenting for fun and profit!
Why the Pentagon May Soon Rent Space in Trump Tower
The Pentagon could pay more than $1 million a year to be near the president in New York City.
Makes you long for the days when security spending was in the hundreds of thousands, and total spending on home improvements was in the millions.
Well, unless this sentence from a 1973 New York Times article is not a typo:
"Representative John Buchanan of Alabama, the ranking Republican on the subcommittee, said that information he had received showed that the Government had spent $5.1‐billion for the security of President Johnson."
http://www.nytimes.com/1973/10/11/archives/secret-service-chief-estimates-security-at-two-nixon-estates-adds.html?_r=0
+John E. Bredehoft It's not so much the cost of security in this case, but the cost is accruing to the coffers of the President's own business.
Actually, the phrasing in the story is interesting. Personal security for the President belongs the Secret Service, which is Treasury. While the nuclear football is mentioned, there's also the implication that Defense is involved in security as well. Which raises the question of in which way? Communications? Anti-misssile / anti-aircraft defense? Powered armor? Inquiring minds want to know!
Playing devil's advocate, I don't think that any recent President or ex-President has based himself in the center of a major city. The last President that I can think of who had such a home was Hoover (also in New York City), but that was well before the explosion in Secret Service protection. For example:
"In 1962 Congress further enlarged the list of Government officers to be safeguarded, authorizing protection … of a former President, at his request, for a reasonable period after his departure from office. The Secret Service considered this "reasonable period" to be 6 months."
By 1962, Hoover had been out of office for almost 30 years.
https://www.archives.gov/research/jfk/warren-commission-report/appendix7.html
Hoover's place in New York – not Trump Tower, but pretty nice.
https://hoover.archives.gov/exhibits/cottages/humble/hhnewyork.html
+John E. Bredehoft Not enough gold plating, clearly.