When two boats share the same hull type — in this case both the Starcraft Marine Limited 2119 I/O 2011 and the Starcraft Marine SF 1620 SS 2010 are modified vee designs with fiberglass construction — the buying decision usually comes down to a handful of practical questions: how many people are you putting on the water, how far do you trailer, and what does your tow vehicle weigh?
Size is the most obvious dividing line here. The Starcraft Marine Limited 2119 I/O 2011 measures 21,3 feet overall (2011), giving it roughly 5,1 additional feet of deck space compared to the Starcraft Marine SF 1620 SS 2010 at 16,2 feet (2010). At 21 lbs and 29 lbs respectively, both sit in a similar weight class — either should pair comfortably with most mid-size SUVs and half-ton trucks, though always confirm your specific tow rating with the motor added.
The power gap is worth calling out. Rated to 300 hp, the Starcraft Marine Limited 2119 I/O 2011 has a 260-hp advantage over the Starcraft Marine SF 1620 SS 2010's 40-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load.
For family outings this is probably the sharpest distinction between the two. The Starcraft Marine SF 1620 SS 2010 is rated for 6 passengers, while the Starcraft Marine Limited 2119 I/O 2011 caps at 1. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Starcraft Marine SF 1620 SS 2010 could be the deciding factor.
Bottom line: Choose the Starcraft Marine SF 1620 SS 2010 if your priority is putting more people on the water — it handles 6 passengers and at 16,2 ft it has the deck room to back that rating up comfortably. The Starcraft Marine Limited 2119 I/O 2011 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 1 that costs less to run day-to-day.