I second that. I have done some work, web-design, programming and some server installations and never needed any 'paper'
I used an Agency, they quized me and ripped me to shreds to find out what i knew, and more importantly, what i thought i know but dont really.
When i was doing my Uni course, i was offered to do the MS Certifications, but you are talking big money usually to take a class for these things. Home learning is good, but doesnt come close to the classroom in my opinion.
It all depends on what you want to do, there are plenty of Agencies out there, go to them and ask them and then the'll tell you if you need any extra bits of paper to do what you want.
As for CompTIA. I dont do slander, but friends of mine have had there fingers burnt there, so go with caution...
At the end of the day, experience speeks louder than some paper you have.