To accurately estimate the value of a cow, consider calf prices for each of the productive years of that cow. Cull cow value also needs to be estimated for the year that the cow leaves the herd. Because of the risk and uncertainty involved in predicting the market, educated predictions should be made utilizing the various marketing forecast information available. Several companies such as Cattle Fax and trade magazines, provide this information from their perspective. Remaining on the conservative side is recommended when predicting the market.
Cattlemen are notorious for being overly optimistic.
It is better to be pleasantly surprised than grossly disappointed. Market predictions are an estimate at best. This means you can determine what you can afford to pay for an older cow with much more confidence than for that of a young cow. Age of Cow at Purchase and Years of Production Young cows are more valuable than older cows. The biggest expense is in heifer development stages - from weaning to third conception.