For different vendors, more customers are considering only the difference of the purchase cost or pay more attention to the difference between the total cost of purchase (purchase cost + warehousing + shipping costs etc.)?
For different suppliers, do customers consider only differences in procurement costs or more on differences in total procurement costs (purchase costs, warehousing costs, freight, etc.)?
For different suppliers, do customers only consider the difference of purchase cost or pay more attention to the difference of total purchase cost (purchase cost + storage cost + freight, etc.)?