I'm mostly big in rehacking my free keyboards so that they have n-key rollover, but in my dealings with Unicomp, these things jump out at me:
http://pckeyboards.stores.yahoo.net/
Horrible web presence. Try registering unicompkeyboard.com for 9.99/yr with 20% off! That way it contains your trademark. You could even just use pckeyboard.com that you already own! (P.S. Jim Owens: stop replying from your yahoo address.)
Have a clear support e-mail address. For some reason I remember stumbling upon both unicomp@pckeyboard.com and support@pckeyboard.com. Unify or clearly specify which is for what. And clean up that website. "The Web Site is currently being "remodeled"; should you encounter a problem during this time, please contact Customer Support at the toll free number shown below." I think it's said that for a year.
I can even suggest to Unicomp that there are free hosting services that provide advanced features if someone doesn't want to pay 3 dollars a year to actually have a host that allows URLS like pckeyboards.stores.yahoo.net to be rewritten.
I think we do all know one great thing about Unicomp seems to be the promptness of response and seeming willingness to help. I don't think that's a reason to be lax elsewhere.
Sometime, I even come upon a website of a product/service I like, and the site sucks so bad and I know the backend must be so simple/lame I contemplate volunteering 40 hours or something just to clean the damn thing up once and for all...since I would guess there is not a lot to the pckeyboard.com website, that is probably a possibility for someone. (I can't actually tell you the last time I did that, because it was probably never. But it does cross the mind!)
I think the best thing Unicomp could do is take the SK-720C at 14.95 and pop full n-key rollover on it (what's that going to be, 2 dollar increase of manufacture cost?), raise the price 5 bucks, and attack a new market. I sure have not seen a basic layout keyboard (arranged in what looks to be my favorite layout -- single line enter key, big backspace?) with n-key rollover for under 60 bucks except may on special sale. Advertise and sell it on that single feature, since even companies/distributors who have n-key rollover keyboards fail to adequately market that factor. I would buy a **** keyboard that has n-key rollover (since I've been using membrane keyboards my whole life) on principle at 20 bucks, and you better be sure I'll pick one up.
I don't really think it's that much of a wonder why retail won't pick up Unicomp keyboards because they really are a niche company until they can prove (not through gimmickry) to people either a long range cost-effectiveness vs crap keyboards, some considerable ergonomic effect, or be able to show a market you're useful.
Some of us are already bought on Unicomp...and maybe it's just more of us they're targeting. But the public isn't us, and what the public has loved for the last century is 'cheap' under any name it comes by.