It would have saved them a lot of money screwing around w/ the coatings 
for all of these years.
But the colors would not be vivid, they would get dull over time.
Besides the spalls and cracks would show to easily.

][<

>>What if Frank Lloyd Wright had left the Guggenheim unpainted,  but tinted the concrete in gradually changing shades all the  way up, say, deep, deep rust through bright red through  flaming orange through yellow?
>>    
>>
>
>You mean like a prairie sunset in the city?
>

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