Census Data for regional Geographies like City areas or Major Urban Areas merit an option to show Charts and change over time. BAO offers more recent year datasets but doesn't allow comparisons for multiple years easily.
AGOL has the data available but requires extensive time for extraction as do many of the Census Bureau's data tools.
If some common statistics like Population, Household Mean, Income, unemployment, etc could be available for various years, to compare, it would be grand!