Yup. The ad business is huge money. Not the least because ad buyers pay ridiculous amounts of money for ads time.
With subscribers the amount of money you can make is cost of subscription x # of subscribers and you have a limited number of prices you can charge subscribers. With ad revenue the amount of money you can make is limited only by the number of companies who value your access to eyeballs.
I expect to see them to introduce an ad-supported cheaper version of the Standard Plan the next time they need to show revenue growth and try to move Standard Plan customers onto it.
