South Bay 25 Sport RS9 keeps an estimated 62% of its value after 5 years — #4040 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 RS9 retains an estimated 62% of its value after five years, ranking #4040 of 5915 boats we track. That is roughly in line with the 62% five-year average for Pontoon in its class.
Most of the loss lands early: the South Bay 25 Sport RS9 sheds about 20% of its value in year one alone. From roughly $139,876 it falls to around $86,862 by year five — a five-year loss near $53,014, about $29.05 a day in depreciation.
Because the steepest drop hits around year 2, a lightly-used South Bay 25 Sport RS9 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 62% of its value after five years — worse than most among the 5915 boats VINdown tracks (ranked #4040).
From about $139,876 it drops to roughly $86,862 after five years — a loss near $53,014 (62% 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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