Stucco is valued as a siding material for its attractiveness and durability and is a relatively low-maintenance exterior finish. It is often used on (but is certainly not limited to) Spanish-style homes. Stucco can be directly applied to brick and concrete primer, or applied over a wood frame, metal siding, or any other material.
While nothing prevents anyone from painting or whitewashing concrete to make it look like stucco, paint generally does not adhere to concrete longer than two or three years, requiring constant re-application. Removing these materials in order to re-stucco requires expensive sandblasting. Paint also prevents the concrete from breathing. A stucco home can be refinished with an integral color stucco which does not require painting. Color can also be added to concrete when it is originally placed before curing, and thus the concrete would not require painting.