If you are a competitive racer - $200/lb is a great deal. 15#->14# $500/lb is a great deal and 14#->13# $1,000/lb is a great deal.
Not worth it if the stuff does not work as well.
Depends how much time and money you put into the sport, but assuming you race 20-70X a year and drive to 30-50 hours and have (retail) $5K+ bike then easy.