Invisible wrote:
> Is this a valid solution to a design problem? Or is it a cheap hack?

It's a floor wax *and* a salad dressing!

Seriously, that's not at all uncommon in the world of credit card 
terminals. You would rather buy 20 $25 serial boxes than replace 20 $300 
credit card terminals when you go to a networked cash register thingie.

-- 
   Darren New / San Diego, CA, USA (PST)
     "That's pretty. Where's that?"
          "It's the Age of Channelwood."
     "We should go there on vacation some time."

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