My condo is part of a complex in which each building contains 4 or 6 two story units in a row. The buildings have wooden siding which periodically needs to be stained. As part of the process any bad siding boards are replaced. The top picture shows this process in October 2000. The second picture shows the same building currently. In both cases the white boards are siding that has just been replaced. As can be seen the siding does not seem to be very durable which increases the maintenance expense. Part of my complex (and all of a neighboring complex) got tired of this and replaced all the wooden siding with vinyl. This is expensive but might be worth it in the long run if it reduces upkeep.