Conversation so far:
where do they do spring training in arizona
Arizona spring training locations for the Cactus League include Arizona Salt River Pima Maricopa Indian Community, Mesa, Phoenix, Goodyear, Surprise, Tempe, Peoria, and Scottsdale.
how much does the cactus league generate for the phoenix area
According to the Arizona Republic, the Cactus League generates more than $300 million a year in economic impact to the greater Phoenix metropolitan area economy

Question: how much was spent on stadiums
Self-contained rewrite: how much was spent on stadiums in the greater Phoenix metropolitan area for the 15 teams in the valley