i'm of the opinion that what footballers wear and what they wear on their heads have followed a parralel life cycle. getting progressively more ambitious through the 80s and early 90s before reaching a zenith at the USA '94 world cup, before getting a bit boring again in the last 10 years or so.
proof: http://www.theoffside.com/wp-content/uploads/2007/06/lalas-1994-world-cup.jpg
go alexi!