An amortizing loan splits each payment between interest and principal. Early on most of it is interest; as the balance falls, more goes to principal, so equity builds slowly at first then accelerates.
RV, camper, motorcycle and land loans often run longer terms at higher rates than auto loans, which means total interest can rival the asset's price over the full term.
Seeing the schedule — payment, interest, principal and remaining balance month by month — is what makes the true cost of a longer term obvious before you sign.
Try it: more on amortization works rv camper, see assetloancalculator.com.