Probably because 1990's balls sucked, and were expensive to manufacture (wound cores?) There are plenty of cheap golf balls using modern materials, designs, an

Probably because 1990's balls sucked, and were expensive to manufacture (wound cores?) There are plenty of cheap golf balls using modern materials, designs, and manufacturing techniques out there. People just want to play what they see the pro's playing - because its one less thing they can blame their shitty performance on. Club technology has not significantly changed in the past 10 years, but Golfers are always looking for an edge that does not require more practice...thus the constant new products.