To your first point. Comparable housing units are used to price new listings, so even if a specific home is only sold every 10 years, there are comparable homes

To your first point. Comparable housing units are used to price new listings, so even if a specific home is only sold every 10 years, there are comparable homes sold every year that drive up the value by 6% yearly. To your second point, I can't speak to specific markets, but assuming other market forces for the most part balance out over time and the only things that constantly change are inflation and increased brokerage fees, it could still show 6% growth.