When two boats share the same hull type — in this case both the SeaArk Big Easy 200 2010 and the SeaArk RiverCat CX200 (SC) 2008 are modified vee designs with aluminum 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 SeaArk Big Easy 200 2010 measures 20,1 feet overall (2010), giving it roughly 18,1 additional feet of deck space compared to the SeaArk RiverCat CX200 (SC) 2008 at 2,0 feet (2008). At 155 lbs and 119 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.
Both boats share a closely matched power ceiling — 150 hp for the SeaArk Big Easy 200 2010 and 140 hp for the SeaArk RiverCat CX200 (SC) 2008. Real-world performance will come down more to which motor is actually bolted on, its load at the time, and whether it's a 4-stroke or 2-stroke setup.
For family outings this is probably the sharpest distinction between the two. The SeaArk RiverCat CX200 (SC) 2008 is rated for 12 passengers, while the SeaArk Big Easy 200 2010 caps at 8. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the SeaArk RiverCat CX200 (SC) 2008 could be the deciding factor.
Bottom line: Choose the SeaArk RiverCat CX200 (SC) 2008 if your priority is putting more people on the water — it handles 12 passengers and at 2,0 ft it has the deck room to back that rating up comfortably. The SeaArk Big Easy 200 2010 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 8 that costs less to run day-to-day.