Bennington 20 SL vs Bennington 20 SLM: 5-year value retention (68% vs 68%), resale value, and cost of ownership head-to-head. Bennington 20 SL holds its value better.
On five-year value retention the Bennington 20 SL comes out ahead, holding about 68% of its value versus 68% for the Bennington 20 SLM. Over the first five years the Bennington 20 SL loses roughly $11,465 while the Bennington 20 SLM loses about $11,456 — a gap near $-9.
First-year drop is the biggest factor: the Bennington 20 SL sheds about 10% in year one versus 10% for the Bennington 20 SLM. If you buy used, the steeper early drop is what the original owner absorbs.
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