Because I have to register mine before the end of the month and it's only $99. It was $99 for my SUV back in January, too. (Side-note: It pisses me off that they keep increasing all the taxes in Illinois... where the hell is it all going?)
"When you say this, will you be surprised if your arguments seem to move about instead of staying put? And will you accuse me of being Daedalus who makes them move, though you are yourself much more skillful than Daedalus and make them go around in a circle? Or do you not realize that our argument has moved around and come again to the same place? [...] Or do you not remember?" - Socrates