Link building and its drawbacks

Link building is often defined as practice of getting links from other sites to your own site.
Search Engines give more importance to websites that have more inbound links and therefore rank those sites higher in their search results.
From past many years webmasters have actively involved in various link building activities to get top rankings in search engines.

DRAWBACKS:
THE largest drawback with building one’s link popularity properly is “TIME”.
It takes time to:
1 Find the websites to link with
2 Make the link requests
3 Wait on those link requests
4 Process, organize, and manage the links
5 Have the search engines find or “spider” your link partners
6 Check to see if your links are still on your partner’s websites