Having grown accustomed to the county government providing their performance and rehearsal spaces, some arts groups in Arlington County, Virginia, are suddenly seeing the downside of a successful public program: uncertainty about where they’ll be in the near future. “Under the umbrella of its Arts Incubator, the county is working with 55 arts groups and nine arts spaces (compared with 10 groups in 1990). As the program has grown, so has competition for new locations. Theater groups are feeling the squeeze because the county can’t accommodate them all. And the real estate boom has sent rents for other spaces out of reach for many who might rent commercial venues.”