I am Cisco certified and have 10 years of troubleshooting and configuration experiance with Cisco hardware and networking. I also have 8 years of linux experiance.
To me you can boast about your Certifications till the cows come home and call you by name; but give me someone who has done it a few times in the real world any day!
Or someone who can RTFM and figure it out... Tests and Certs prove one thing you can read and memorize. Again this is my opinion been doing this too long maybe I am a bit Jadded?