The Mariah G23 2010 vs Mariah SC21 Cuddy Cabin 2007 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 - Mariah G23 2010 at 23,0 ft versus Mariah SC21 Cuddy Cabin 2007 at 20,0 ft. Weight tells a clearer story for trailering families: the Mariah G23 2010 tips the scales at 4 500 lbs - 900 lbs more than the Mariah SC21 Cuddy Cabin 2007 at 3 600 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 320 hp, the Mariah G23 2010 has a 60-hp advantage over the Mariah SC21 Cuddy Cabin 2007's 260-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Mariah G23 2010 carries 57 gallons versus 44 gallons in the Mariah SC21 Cuddy Cabin 2007. 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 Mariah G23 2010 is rated for 12 passengers, while the Mariah SC21 Cuddy Cabin 2007 caps at 10. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Mariah G23 2010 could be the deciding factor.
Bottom line: Choose the Mariah G23 2010 if your priority is putting more people on the water - it handles 12 passengers and at 23,0 ft it has the deck room to back that rating up comfortably. The Mariah SC21 Cuddy Cabin 2007 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 10 that costs less to run day-to-day.