Alweld 1756 Flat Marsh SC Pkg vs Sea Vee 390 CC: 5-year value retention (73% vs 73%), resale value, and cost of ownership head-to-head. Alweld 1756 Flat Marsh SC Pkg holds its value better.
On five-year value retention the Alweld 1756 Flat Marsh SC Pkg comes out ahead, holding about 73% of its value versus 73% for the Sea Vee 390 CC. Over the first five years the Alweld 1756 Flat Marsh SC Pkg loses roughly $2,045 while the Sea Vee 390 CC loses about $162,534 — a gap near $160,489.
First-year drop is the biggest factor: the Alweld 1756 Flat Marsh SC Pkg sheds about 7% in year one versus 9% for the Sea Vee 390 CC. If you buy used, the steeper early drop is what the original owner absorbs.
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