When two boats share the same hull type — in this case both the Sun Tracker Party Barge 20 2010 and the Sun Tracker Party Barge 20 Regency Edition 2009 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?

Size is the most obvious dividing line here. The Sun Tracker Party Barge 20 2010 measures 21,0 feet overall (2010), giving it roughly 19,0 additional feet of deck space compared to the Sun Tracker Party Barge 20 Regency Edition 2009 at 2,0 feet (2009). Weight tells a clearer story for trailering families: the Sun Tracker Party Barge 20 Regency Edition 2009 tips the scales at 2 283 lbs — 605 lbs less than the Sun Tracker Party Barge 20 2010 at 1 678 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.

Both boats share a closely matched power ceiling — 115 hp for the Sun Tracker Party Barge 20 2010 and 115 hp for the Sun Tracker Party Barge 20 Regency Edition 2009. Real-world performance will come down more to which motor is actually bolted on, its load at the time, and whether it's a 4-stroke or 2-stroke setup. Both carry nearly identical fuel loads — 42 gal and 45 gal — so range won't be a tiebreaker here.

For family outings this is probably the sharpest distinction between the two. The Sun Tracker Party Barge 20 Regency Edition 2009 is rated for 12 passengers, while the Sun Tracker Party Barge 20 2010 caps at 10. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Sun Tracker Party Barge 20 Regency Edition 2009 could be the deciding factor.