Both the Starcraft Marine 2018 I/O RE 2010 and the Starcraft Marine PRO CAMP 1620 T 2009 are modified-V designs, the first built in fibreglass and the second in aluminium, so 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?
On paper these two are close siblings in the size department - Starcraft Marine 2018 I/O RE 2010 at 18,6 ft versus Starcraft Marine PRO CAMP 1620 T 2009 at 16,0 ft. Weight tells a clearer story for trailering families: the Starcraft Marine 2018 I/O RE 2010 tips the scales at 2 345 lbs - 1 775 lbs more than the Starcraft Marine PRO CAMP 1620 T 2009 at 570 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 220 hp, the Starcraft Marine 2018 I/O RE 2010 has a 180-hp advantage over the Starcraft Marine PRO CAMP 1620 T 2009'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 2018 I/O RE 2010 is rated for 8 passengers, while the Starcraft Marine PRO CAMP 1620 T 2009 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Starcraft Marine 2018 I/O RE 2010 could be the deciding factor.
Bottom line: Choose the Starcraft Marine 2018 I/O RE 2010 if your priority is putting more people on the water - it handles 8 passengers and at 18,6 ft it has the deck room to back that rating up comfortably. The Starcraft Marine PRO CAMP 1620 T 2009 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 5 that costs less to run day-to-day.