Bennington 21 SL vs Bennington 218 SL: 5-year value retention (68% vs 68%), resale value, and cost of ownership head-to-head. Bennington 21 SL holds its value better.
On five-year value retention the Bennington 21 SL comes out ahead, holding about 68% of its value versus 68% for the Bennington 218 SL. Over the first five years the Bennington 21 SL loses roughly $12,250 while the Bennington 218 SL loses about $9,710 — a gap near $-2540.
First-year drop is the biggest factor: the Bennington 21 SL sheds about 11% in year one versus 8% for the Bennington 218 SL. If you buy used, the steeper early drop is what the original owner absorbs.
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