Recycling secondary sources at a premium

Drew Wagenhoffer spotted a new book on McClellan's first Richmond campaign based entirely on secondary sources - mainly Sears ! - and priced at $45 for 185 pages.

Is this is a publishing house that thinks there's still plenty of money to be made in that old time (1961-1965) religion? Or is this the fruit of an acquisitions editor who does not know which end is up?