Paraterraforming vs. terraforming the Moon and Mars

From: sraj
"Why not sell homes in O'Neil type habitats."

With current economics for space access, few people could afford the accomodations.

Another issue is project timeline and financing. A company pursuing just the hab construction as a real estate venture would run out of money long before construction is finished. I don't know of any company on earth that could finance much beyond the construction shack. Without other economic activity alongside this, (SPS or other product / service) is therejustification for the vast, vast sums of money needed for building the habs as a stand-alone venture?