This real question is the equal to asking exactly how much does food cost in the market? Your current skittles and there's absolutely nothing steak - all have very different prices. Could be the same with radio marketing and advertising. There are many factors that play into an effective radio marketing. Nine from the 10 times I would say your gut could be more accurate as opposed to slew of unqualified people you consulted with.
Now i am not saying with the amount of don't have valid judgments. I'm saying they don't have qualified opinions. You needed surgery would you trust the opinion of the brother or coworker over that of ones medical skilled professional? If the answer is no, then why can trust their opinion on makes an efficient radio commercial over a qualified professional who writes advertising for living? Does the price tag of a customer warrant the spend?
In the event the average bill that a whole new customer spends with you over an entire lifetime is $500, hopefully are not going to shell out that much to attract them!
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