Plenty has changed in the U.S. regarding boxing. Ali and company used to routinely grace the covers of mags like Sports Illustrated and such. Boxing was a bigger slice of the sports pie in the U.S. Enter UFC, X-Games, and a variety of new-fangled sports aimed at the Millenials.... and the slice of pie shrinks. My earlier point about the U.S. only being interested in sports it dominates still holds. If it can't dominate a sport, it loses interest. Plain and simple. Meanwhile, boxing has always held a special place in the UK. Only difference now is that it's finally getting better after a lot years of mediocrity. That'll tweak the interest of most any country.