South Bay 25 Sport SL9 keeps an estimated 60% of its value after 5 years — #4789 of 5915 boats VINdown tracks. See its full depreciation curve, cost per day, and best model year to buy.
Per VINdown's modeling, the South Bay 25 Sport SL9 retains an estimated 60% of its value after five years, ranking #4789 of 5915 boats we track. That trails the 62% five-year average for Pontoon in its class by 2 points, so it depreciates faster than most rivals.
Most of the loss lands early: the South Bay 25 Sport SL9 sheds about 20% of its value in year one alone. From roughly $139,458 it falls to around $83,256 by year five — a five-year loss near $56,202, about $30.80 a day in depreciation.
Because the steepest drop hits around year 2, a lightly-used South Bay 25 Sport SL9 bought at 2 years old lets the first owner absorb the worst of the depreciation while the curve flattens — usually the value sweet spot. Explore the full year-by-year curve, trims, and true cost of ownership in the Model Lab above.
It keeps an estimated about 60% of its value after five years — worse than most among the 5915 boats VINdown tracks (ranked #4789).
From about $139,458 it drops to roughly $83,256 after five years — a loss near $56,202 (60% retained).
Around 2 years old: that is just past the steepest depreciation, so you skip the biggest drop while the value curve is flattening.
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