The Parker Boats 2100 Big Bay 2012 vs Parker Boats 2820 XLD Sport 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.
Size is the most obvious dividing line here. The Parker Boats 2820 XLD Sport Cabin 2007 measures 28,0 feet overall (2007), giving it roughly 7,0 additional feet of deck space compared to the Parker Boats 2100 Big Bay 2012 at 21,0 feet (2012). Weight tells a clearer story for trailering families: the Parker Boats 2100 Big Bay 2012 tips the scales at 265 lbs — 201 lbs more than the Parker Boats 2820 XLD Sport Cabin 2007 at 64 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 600 hp, the Parker Boats 2820 XLD Sport Cabin 2007 has a 400-hp advantage over the Parker Boats 2100 Big Bay 2012's 200-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Parker Boats 2820 XLD Sport Cabin 2007 carries 25 gallons versus 5 gallons in the Parker Boats 2100 Big Bay 2012. 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 Parker Boats 2820 XLD Sport Cabin 2007 is rated for 8 passengers, while the Parker Boats 2100 Big Bay 2012 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Parker Boats 2820 XLD Sport Cabin 2007 could be the deciding factor.
Bottom line: Choose the Parker Boats 2820 XLD Sport Cabin 2007 if your priority is putting more people on the water — it handles 8 passengers and at 28,0 ft it has the deck room to back that rating up comfortably. The Parker Boats 2100 Big Bay 2012 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 6 that costs less to run day-to-day.