Similar to Ghost 3.0, WordPress (WordPress.com + Jetpack sites) now supports payments too. As with Ghost, this is also based on Stripe, but with a few more options (because WordPress in general has more options).
I think interesting times are coming, given the huge market share and user base of WordPress. Will 30% of the web hide behind a paywall? Or is this finally the solution to replace advertising with donation options? Let's see!