When two boats share the same hull type — in this case both the Key West 1720 CC 2008 and the Key West 244 CC 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?

The power gap is worth calling out. Rated to 300 hp, the Key West 244 CC 2009 has a 180-hp advantage over the Key West 1720 CC 2008's 120-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Key West 1720 CC 2008 carries 31 gallons versus 14 gallons in the Key West 244 CC 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 Key West 244 CC 2009 is rated for 7 passengers, while the Key West 1720 CC 2008 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Key West 244 CC 2009 could be the deciding factor.