I feel if you do it right they are every bit as good as a characterization, mascot or doodle as part of your logo. They do convey more serious, business like approach however. They aren't for every industry. But you wouldn't go to your proctologist who had his face as part of his logo. You'd want him to be serious and professional.
I'll agree with Dan that a mascot/doodle is definitely waaaay more brandable, and easily more memorable as part of a whole branding strategy. But entire branding strategies are expensive to execute, and take a lot of hands on from an agency willing to "put you out there". But using your face as part of your branding strategy is akin to a real estate agent or mortgage broker always seemingly forcing their faces all over town, just because it's common industry practice. These guys aren't the celebrities they want you to think they are, and that whole notion of a smiley face invoking a sense of trust and personable service is just misguided and probably thought up by some smooth talker from an industry seminar. Egomania comes to mind!
Randy, are you a celebrity outside of your bedroom mirror? Do you want or need people to associate your face or a caricature of your face to instill an air of confidence and personable touch in your service you are offering? How divergent is your industry that you are competing in? Is there an established "look" that works for the larger, more successful firms/individuals that are vying for the same slice of pie? If so, then maybe you ought to emulate them to some degree as a starting point.
More to think about.
I do think I am looking for something more fun that adds a personal aspect.
That probably reflects better who I am.
I do believe I have marketable product.
I don't have a business yet, so it will be me, probably selling out of van (hopefully not 'down by the river') and art fairs.
I'm not giving up my day job....yet.
You have been most helpful, thanks I appreciate your input.
How do you think I would look in a cowboy hat?