With online travel agency options whittled down following the $1.6 billion Orbitz-Expedia merger in 2015, and hotels already offering customers perks for ditching the third-party travel sites, it might be hard to imagine the rivalry between the likes of Expedia, Priceline, and major hotels could get more contentious. But it apparently can, and is about be thanks, in part, to the completion of a mega-hotel merger between Marriott and Starwood Resorts. [More]