I finally signed up in order to comment.
JWF, I am surprised you are not syndicated. There is nothing wrong with your drawing, there are hundreds of published comics which have terrible drawing.
You might look for an agent. Once you get in a daily the others will pick up on it. This is a good entertaining comic, I have been following it for a couple of years now.
I originally looked at it because someone else sent a link to it, it had something about computer use. You might follow up on the computer angle, there is no one making fun of geeks at the moment.
And better yet, computer and customer support. You have a good line and customer support is something everyone can relate to.