When two boats share the same hull type — in this case both the Baha Cruisers 251 GLE I/O 2008 and the Baha Cruisers 277 GLE IB 2009 are modified vee designs with fiberglass 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 — Baha Cruisers 251 GLE I/O 2008 at 25,0 ft versus Baha Cruisers 277 GLE IB 2009 at 27,6 ft. At 52 lbs and 6 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 320 hp, the Baha Cruisers 277 GLE IB 2009 has a 60-hp advantage over the Baha Cruisers 251 GLE I/O 2008's 260-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Baha Cruisers 251 GLE I/O 2008 carries 114 gallons versus 15 gallons in the Baha Cruisers 277 GLE IB 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 Baha Cruisers 277 GLE IB 2009 is rated for 8 passengers, while the Baha Cruisers 251 GLE I/O 2008 caps at 7. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Baha Cruisers 277 GLE IB 2009 could be the deciding factor.
Bottom line: Choose the Baha Cruisers 277 GLE IB 2009 if your priority is putting more people on the water — it handles 8 passengers and at 27,6 ft it has the deck room to back that rating up comfortably. The Baha Cruisers 251 GLE I/O 2008 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 7 that costs less to run day-to-day.