Buying the rights to GURPS?!?

[Embassy of Time]

THIS IS NOT A SERIOUS OFFER AND NO ANSWERS ARE GOING TO BE CONSIDERED BINDING OR LEGALLY VALID IN ANY AY, SHAPE OR FORM!!!

A friend of mine, for very complicated and dull reasons, asked me how much GURPS "is worth". Essentially, how much would it cost to buy the rights to GURPS (and by estimate, any similar RPG system). Again, not offering, I am dirt poor, but it made me wonder.....

(if anyone is wondering, a lot of my old school buddies have gone the business route while Ibecame a science teacher. They like to ask me weird businessy questions about everything I love and watch me squirm...)