New Horizons 403S vs Sierra By Forest River 399LOFT: 5-year value retention (55% vs 55%), resale value, and cost of ownership head-to-head. New Horizons 403S holds its value better.
On five-year value retention the New Horizons 403S comes out ahead, holding about 55% of its value versus 55% for the Sierra By Forest River 399LOFT. Over the first five years the New Horizons 403S loses roughly $133,960 while the Sierra By Forest River 399LOFT loses about $38,621 — a gap near $-95339.
First-year drop is the biggest factor: the New Horizons 403S sheds about 31% in year one versus 40% for the Sierra By Forest River 399LOFT. If you buy used, the steeper early drop is what the original owner absorbs.
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