This has been discussed a few times in the past (I'll leave it to the members to perform the searches if they want to read about it).
The gist of it is this (as was stated by either Jeff or one of the moderators previously): to maintain the integrity of this site it would be inadvisable to advertise anything but herps in the classifieds. This is because many people would register as members from other areas of the internet to post massive amounts of garbage while contributing nothing to the site. By keeping it herp related, advertising in the classifieds would be a byproduct of being an active contributor to our forums.
I wholeheartedly agree with what has already been said regarding this issue. There are other venues in which you can offload your electronics.