Sea-Doo RXT X 300 Sound System vs Yamaha GP1800R HO: 5-year value retention (74% vs 75%), resale value, and cost of ownership head-to-head. Yamaha GP1800R HO holds its value better.
On five-year value retention the Yamaha GP1800R HO comes out ahead, holding about 75% of its value versus 74% for the Sea-Doo RXT X 300 Sound System. Over the first five years the Yamaha GP1800R HO loses roughly $3,564 while the Sea-Doo RXT X 300 Sound System loses about $4,318 — a gap near $754.
First-year drop is the biggest factor: the Yamaha GP1800R HO sheds about 8% in year one versus 5% for the Sea-Doo RXT X 300 Sound System. If you buy used, the steeper early drop is what the original owner absorbs.
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