Let's be honest. Without accountibility from co-workers/managers, there will be people that will spend more time doing other things other than work, like browsing HN and commeting on a post.
Google did a study that showed in-person collaboration fosters innovation, which is key to success for software companies. This study is why Marissa Mayer banned remote work when she became CEO of Yahoo.
While the rates are generally the same because of the rate parity agreement these OTAs have with hotels. One way you can get a better deal is booking direct with the hotels. Hotels can offer loyalty rewards, which is not covered by the rate parity agreement, as well as additional on property benefits. My company, https://universalpoints.com offers a 5% cash back that you can earn on your first stay at participating hotels for booking direct with the hotel. We are also working on adding a service where you can use the cash you've earned for reduced room rates and upgrades.