What is the Cost of Marketting Research services?

That's probably priced by what the market can bear, I have seen large variations in prices, research that has a relatively tiny audiences like info only of interest to auto manufacturers may cost tens of thousands of dollars. Studies exclusive to larger markets might still cost in the thousands.

You can buy market reports reasonably priced, but specific market research depends upon the audience, nature of study, depth of questions and resulting analysis etc.