Both the Trophy 1901 Bay Boat 2008 and the Trophy 2101 Bay Boat 2010 are modified-V designs, both built in fibreglass, so 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 - Trophy 1901 Bay Boat 2008 at 19,0 ft versus Trophy 2101 Bay Boat 2010 at 21,7 ft. Weight tells a clearer story for trailering families: the Trophy 2101 Bay Boat 2010 tips the scales at 2 650 lbs - 750 lbs less than the Trophy 1901 Bay Boat 2008 at 1 900 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.
The power gap is worth calling out. Rated to 225 hp, the Trophy 2101 Bay Boat 2010 has a 75-hp advantage over the Trophy 1901 Bay Boat 2008's 150-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Both carry nearly identical fuel loads - 56 gal and 56 gal - so range won't be a tiebreaker here.
For family outings this is probably the sharpest distinction between the two. The Trophy 2101 Bay Boat 2010 is rated for 6 passengers, while the Trophy 1901 Bay Boat 2008 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Trophy 2101 Bay Boat 2010 could be the deciding factor.
Bottom line: Choose the Trophy 2101 Bay Boat 2010 if your priority is putting more people on the water - it handles 6 passengers and at 21,7 ft it has the deck room to back that rating up comfortably. The Trophy 1901 Bay Boat 2008 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 5 that costs less to run day-to-day.