Final answer:
Skilled depth interviewers are more expensive and harder to find compared to focus group moderators.
Step-by-step explanation:
The correct answer is E) Skilled depth interviewers are inexpensive and easy to find compared to focus group moderators.
While the other options mentioned in the question are advantages of using depth interviews over focus groups, option E states the opposite. Skilled depth interviewers might require specific training and expertise, which can make them more expensive and harder to find compared to focus group moderators.