Allied 21 vs Klamath 15 Advantage S: 5-year value retention (71% vs 71%), resale value, and cost of ownership head-to-head. Allied 21 holds its value better.
On five-year value retention the Allied 21 comes out ahead, holding about 71% of its value versus 71% for the Klamath 15 Advantage S. Over the first five years the Allied 21 loses roughly $14,023 while the Klamath 15 Advantage S loses about $2,593 — a gap near $-11430.
First-year drop is the biggest factor: the Allied 21 sheds about 23% in year one versus 12% for the Klamath 15 Advantage S. If you buy used, the steeper early drop is what the original owner absorbs.
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