The Starcraft Marine Nexstar 2100 I/O 2006 vs Starcraft Marine Star Step 220 I/O 2011 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.
On paper these two are close siblings in the size department — Starcraft Marine Nexstar 2100 I/O 2006 at 21,0 ft versus Starcraft Marine Star Step 220 I/O 2011 at 20,3 ft. Weight tells a clearer story for trailering families: the Starcraft Marine Star Step 220 I/O 2011 tips the scales at 2 325 lbs — 2 302 lbs less than the Starcraft Marine Nexstar 2100 I/O 2006 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 260 hp, the Starcraft Marine Star Step 220 I/O 2011 has a 254-hp advantage over the Starcraft Marine Nexstar 2100 I/O 2006'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 Star Step 220 I/O 2011 carries 51 gallons versus 45 gallons in the Starcraft Marine Nexstar 2100 I/O 2006. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.
Both boats are rated for 12 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: Performance buyers should lean toward the Starcraft Marine Star Step 220 I/O 2011 and its 260-hp ceiling. If fuel economy and quieter running matter more than top-end speed, the Starcraft Marine Nexstar 2100 I/O 2006 with its 6-hp rating is the more economical daily driver.