The Starcraft Marine 2100 RE 2008 vs Starcraft Marine C-Star 170 DC 2005 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 Starcraft Marine 2100 RE 2008 measures 21,0 feet overall (2008), giving it roughly 5,0 additional feet of deck space compared to the Starcraft Marine C-Star 170 DC 2005 at 16,0 feet (2005). Weight tells a clearer story for trailering families: the Starcraft Marine C-Star 170 DC 2005 tips the scales at 1 204 lbs — 1 181 lbs less than the Starcraft Marine 2100 RE 2008 at 23 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.

The power gap is worth calling out. Rated to 125 hp, the Starcraft Marine C-Star 170 DC 2005 has a 119-hp advantage over the Starcraft Marine 2100 RE 2008's 6-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Starcraft Marine 2100 RE 2008 carries 45 gallons versus 32 gallons in the Starcraft Marine C-Star 170 DC 2005. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

For family outings this is probably the sharpest distinction between the two. The Starcraft Marine 2100 RE 2008 is rated for 12 passengers, while the Starcraft Marine C-Star 170 DC 2005 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Starcraft Marine 2100 RE 2008 could be the deciding factor.