Are Link Building agencies still needed??

[randiv]

This question is bothering everyone now-a-days in the industry. Last year Matt Cutts had said that links have left years in their lifetime. As, google and other search engines are evolving towards conversational search until then links are still important.
In my opinion agencies are still needed as search engines may be evolving but still they are counting mainly on links as a ranking factor.

Thanks, i completely agree with you.