I'm inclined to agree. Royals Stadium was the first of the new-old style baseball venues that are so refreshing, though being below ground level in the upper deck takes some getting used to. I've never been to Camden Yards but it looks fantastic as well and the new Bush Stadium is near perfection as long as it's not too hot. ;-)
I want to say that in 1972 they contracted for the two stadiums for 57 million. The last renovations spent over that in each stadium. Doing a major football stadium is now north of 350 million and in Dallas I think they spent a billion.