Bison 8411B 4 Horse vs Voltage 3970: 5-year value retention (76% vs 76%), resale value, and cost of ownership head-to-head. Bison 8411B 4 Horse holds its value better.
On five-year value retention the Bison 8411B 4 Horse comes out ahead, holding about 76% of its value versus 76% for the Voltage 3970. Over the first five years the Bison 8411B 4 Horse loses roughly $17,719 while the Voltage 3970 loses about $34,231 — a gap near $16,512.
First-year drop is the biggest factor: the Bison 8411B 4 Horse sheds about 16% in year one versus 5% for the Voltage 3970. If you buy used, the steeper early drop is what the original owner absorbs.
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