Places generally along the South Freeway (I-45), and south of the Ship Channel, including Clear Lake, Deer Park, Freindswood, the Hobby Area, League City, Pasadena, Santa Fe, South Houston, and Texas City.
Most people who move to condos don't do it for the money. It's not whether it's more or less than your SF residence was, it's "condo life".
As someone who made the house>condo move a couple years ago, I can tell you from talking to my fellow residents, there is not one single person who factored money into the equation. It's the lock & leave lifestyle, it's security concerns, it's having packages accepted for you 24/7, it's not having to worry about the roof or the A/C or the yard or the pool or floods... or anything.
Maybe at some price point, or in some parts of the country, condo vs SFH is a real debate. But in the upper end segment of Houston condos, it's a lifestyle choice, not a $$$ one.
Just my .02