When two boats share the same hull type — in this case both the Parker Boats 2100 Special Edition 2009 and the Parker Boats 2530 Extended Cabin 2011 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?
The power gap is worth calling out. Rated to 500 hp, the Parker Boats 2530 Extended Cabin 2011 has a 300-hp advantage over the Parker Boats 2100 Special Edition 2009'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 2530 Extended Cabin 2011 carries 173 gallons versus 95 gallons in the Parker Boats 2100 Special Edition 2009. 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 2530 Extended Cabin 2011 is rated for 7 passengers, while the Parker Boats 2100 Special Edition 2009 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 2530 Extended Cabin 2011 could be the deciding factor.
Bottom line: Choose the Parker Boats 2530 Extended Cabin 2011 if your priority is putting more people on the water — it handles 7 passengers and at 25,3 ft it has the deck room to back that rating up comfortably. The Parker Boats 2100 Special Edition 2009 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 6 that costs less to run day-to-day.