When two boats share the same hull type — in this case both the Weldcraft Marine 280 2009 and the Weldcraft Marine 300 Ocean King 2013 are deep 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 Weldcraft Marine 300 Ocean King 2013 measures 32,0 feet overall (2013), giving it roughly 4,0 additional feet of deck space compared to the Weldcraft Marine 280 2009 at 28,0 feet (2009). Weight tells a clearer story for trailering families: the Weldcraft Marine 300 Ocean King 2013 tips the scales at 455 lbs — 410 lbs less than the Weldcraft Marine 280 2009 at 45 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.
Both boats share a closely matched power ceiling — 500 hp for the Weldcraft Marine 280 2009 and 500 hp for the Weldcraft Marine 300 Ocean King 2013. 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. Fuel capacity breaks the other way: the Weldcraft Marine 300 Ocean King 2013 carries 127 gallons versus 16 gallons in the Weldcraft Marine 280 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 Weldcraft Marine 300 Ocean King 2013 is rated for 9 passengers, while the Weldcraft Marine 280 2009 caps at 8. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Weldcraft Marine 300 Ocean King 2013 could be the deciding factor.
Bottom line: Choose the Weldcraft Marine 300 Ocean King 2013 if your priority is putting more people on the water — it handles 9 passengers and at 32,0 ft it has the deck room to back that rating up comfortably. The Weldcraft Marine 280 2009 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 8 that costs less to run day-to-day.