...also because I didn't have framed prints up on the walls of my apartment (long story, but I live in a condo bldg w/ concrete walls and need to get a permit to hire a contractor to drill into the wall, etc.).
Having been in and around the construction industry for much of my adult life, I can't say I've
EVER encountered
"CONDOS" with concrete interior walls. Just not much attraction to somebdy looking to plunk down the kind of money condos go for.
Now, Section 8 housing
PROJECTS on the other hand, use materials like that to keep the inmates from ripping out all the damned plumbing to sell to the scrap collectors...