The Odyssey Millennium 1702M 2003 vs Odyssey Millennium 2309M 2003 comparison sits squarely in the category of decisions where specs alone won't tell the whole story: intended use, storage, and long-term ownership costs all factor in.
Size is the most obvious dividing line here. The Odyssey Millennium 2309M 2003 measures 22,0 feet overall (2003), giving it roughly 6,0 additional feet of deck space compared to the Odyssey Millennium 1702M 2003 at 16,0 feet (2003). Weight tells a clearer story for trailering families: the Odyssey Millennium 2309M 2003 tips the scales at 2 050 lbs - 550 lbs less than the Odyssey Millennium 1702M 2003 at 1 500 lbs. That difference is meaningful if you're working within a half-ton or three-quarter-ton truck's tow rating, especially once you factor in a motor, gear, and fuel.
Both boats are rated for 11 passengers - a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.
Bottom line: The Odyssey Millennium 2309M 2003 at 22,0 ft is the right call if deck space, comfort, and entertaining are top of your list. The Odyssey Millennium 1702M 2003 at 16,0 ft wins on trailering ease, likely lower purchase price, and simpler docking - a solid choice for a buyer who wants more boat for less money.