Agreed on the wasting time part. I've actually had significantly better response rates from companies when going through a recruiter instead of applying directly to the position on the website/linkedin/whatever. At least with a recruiter you get someone with an active interest in getting your resume in front of a hiring manager, as opposed to your application disappearing into the sea of 100+ applicants vying for keyword supremacy.
Your comment seems to be contradicting itself. You say that looking for a recruiter is wasting time, but a recruiter is the best choice. Which one do you mean?