Jim, your not listening, they do talk about the Larger Racquet Head in Tennis and the extra power and bigger sweet spot they have compared to yesteryear, the Cricket Bats do not have to be hit in anymore they are thicker and the Ball can be hit a lot further these day's, as for those Darts, I used to play a lot in the 70's, but the Darts of today you could actually put 6 Darts in the treble 20 they are so thin, not possible in the 70's, they are so accurate as well, Rugby League Balls are synthetic now, when they were Leather they were like a Cake of Soap when they got wet, and even the kicking Tee's are an improvement.
Everything in every Sport has improved, the only People knocking Tenpin Bowling are Tenpin Bowlers, the rest of the World does not know or care.
willey