It was everything. Carpet and base-molding tear out/haul away, gluing down the 3/4" plywood, nailing the 3/4" Red Oak to the plywood, re-installing 5" baseboards with top trim and painting white to match other moldings. Sanding, staining, and polyurethane coating.
After this was done, I recognized the bundle of hardwood flooring at Home Depot as the same as what the installation crew brought to the house. The goal was to do upgrades to the parents' house, sell it then move them closer to siblings who could help them in their old age. But now they won't move because of the upgrades - they love the house so much they don't want to move.
Not only did they get wood floors, but granite countertops (including the island), settling cracks in sheetrock fixed, new interior paint job, they're also getting built-ins put in the living room (entertainment center).
Granite slab Mom picked out (Dad didn't care):




Under counter - mount sink. Mom liked the black because it didn't take away from the granite.

Pic of dining room wood floor with Polyurethane still wet. Mom loves her wood floors.