Formerly a dairy farm, Mainstay's many buildings are now used for all sorts of events, such as company picnics for companies in Fort Worth, Arlington and surrounding communities, birthday parties, family reunions, church youth group gatherings, and day retreats. Last year, the farm entertained more than 20,000 guests from the Fort Worth and other DFW metroplex towns, giving personal attention to each one. Seating capacity can serve intimate parties as small as 60 up to large parties up to 1,200. A permanent 16 X 24 bandstand is ready for live music.