What it actually is
Eagle sits at roughly 6,600 feet on the valley floor along the Eagle River, on the I-70/US-6 corridor about 30 miles west (downvalley) of Vail. Unlike unincorporated valley communities such as Edwards and Avon, Eagle is an incorporated town — it was incorporated in 1905 and has its own town government — so zoning, short-term-rental rules, and many services run through the Town of Eagle rather than only through the county. As the Eagle County seat, it also holds the courthouse and county offices, which makes it more of a working, lived-in town than a pure resort base.
The area spans an older historic core near Broadway and the larger Eagle Ranch master-planned community in the Brush Creek Valley, which brings an Arnold Palmer-designed public golf course, trails, and its own HOA and district structure. Eagle's lower elevation and drier, high-desert climate give it a notably longer mountain-biking and trail season than the higher resort towns — the Boneyard and Haymaker trail networks are a genuine draw. It's a growing town, and demand spilling downvalley has pushed values up over time, so treat any price you see as a starting point and confirm current figures for the specific property and neighborhood.
One honest tradeoff to weigh up front: Eagle is more attainable in large part because it's a real commute from the lifts. Getting to Vail or Beaver Creek is a 30-to-45-minute drive depending on conditions and season. Eagle County Regional Airport (EGE) is only about four miles west in Gypsum, which is a real convenience for flying in — and, for some parcels, a flight-path and noise consideration worth checking.