Monterey 328 SS Axius vs Sea Ray SLX 310 Axius: 5-year value retention (57% vs 57%), resale value, and cost of ownership head-to-head. Sea Ray SLX 310 Axius holds its value better.
On five-year value retention the Sea Ray SLX 310 Axius comes out ahead, holding about 57% of its value versus 57% for the Monterey 328 SS Axius. Over the first five years the Sea Ray SLX 310 Axius loses roughly $123,530 while the Monterey 328 SS Axius loses about $102,680 — a gap near $-20850.
First-year drop is the biggest factor: the Sea Ray SLX 310 Axius sheds about 9% in year one versus 9% for the Monterey 328 SS Axius. If you buy used, the steeper early drop is what the original owner absorbs.
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