The Spectre 260 Roadster CC 2011 is a deep-V design and the Spectre SC32 2011 is a catamaran design, so you're likely deciding between two noticeably different on-water experiences. Hull type shapes everything from ride quality and fuel burn to dock handling and resale trajectory.
For family outings this is probably the sharpest distinction between the two. The Spectre 260 Roadster CC 2011 is rated for 8 passengers, while the Spectre SC32 2011 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Spectre 260 Roadster CC 2011 could be the deciding factor.
Bottom line: Choose the Spectre 260 Roadster CC 2011 if your priority is putting more people on the water - it handles 8 passengers and at 25,8 ft it has the deck room to back that rating up comfortably. The Spectre SC32 2011 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 5 that costs less to run day-to-day.