Conversation so far:
What was Walter Hagen's style?
Walter Hagen was widely known for his dashing wardrobe while playing; this featured expensive tailored clothes in bright colors and plush fabrics.
How wealthy was Walter Hagen?
Walter Hagen may have been the first sportsman to earn a million dollars in his career.

Question: What did he do with all his wealth?
Self-contained rewrite: What did Walter Hagen do with all his wealth?