Pay for a Dashboard Widget?

I guess it’s gonna happen sooner or later, but the idea of paying for a Dashboard widget seems wrong. These are little applications that give you quick access to things like a phone book, calculator, ftp client and whatever you can think of. They are CSS/Javascript/DHTML type of things and can be vary handy. So far I haven’t seen any pay ones, however a new widget site now has a checkout area! Widget Machine may be selling widgets soon. Their official launch isn’t until tomorrow, so I guess we have to wait a few more hours. I’m still wondering; what features would make a widget so good that it needs to be paid for?