But it's not 'The ol' hypothetical-one-watch thing', that's a different question. There's a twist here, in that anyone in the world can buy any watch for the price of a Casio. Would you still want the most obvious one, the one that everyone else will be wearing too? Would you still want that rare and expensive watch, when it's no longer rare or expensive? Based on practicality alone, any Rolex will do fine. But you'd see 100 people a day with the same watch.