When two boats share the same hull type — in this case both the Palm Beach Pontoons CastMaster 2010 and the Palm Beach Pontoons Islander 240 BL 2013 are pontoon 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?
On paper these two are close siblings in the size department — Palm Beach Pontoons CastMaster 2010 at 22,0 ft versus Palm Beach Pontoons Islander 240 BL 2013 at 24,3 ft. At 158 lbs and 219 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.
The power gap is worth calling out. Rated to 150 hp, the Palm Beach Pontoons Islander 240 BL 2013 has a 35-hp advantage over the Palm Beach Pontoons CastMaster 2010's 115-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load.
For family outings this is probably the sharpest distinction between the two. The Palm Beach Pontoons Islander 240 BL 2013 is rated for 14 passengers, while the Palm Beach Pontoons CastMaster 2010 caps at 10. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Palm Beach Pontoons Islander 240 BL 2013 could be the deciding factor.
Bottom line: Choose the Palm Beach Pontoons Islander 240 BL 2013 if your priority is putting more people on the water — it handles 14 passengers and at 24,3 ft it has the deck room to back that rating up comfortably. The Palm Beach Pontoons CastMaster 2010 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 10 that costs less to run day-to-day.