I got one 10 years or so ago. I haven't consulted it in years but am more likely to now if I find it again.
I would be interested in a CD of this one but talked to the telemarketer when called but decided to wait. Maybe I won't be able to buy one late but probably wouldn't use it all that much. But at my age it is time to contact people from 50 years ago if ever!
Someone please try the information for usefullness and accuracy and completelness and review it for us. The price of these would be less if a target sale number could be guaranteed, I imagine, but the people that do them appear to have a pretty good chance to profit a lot from any decent sale if they aren't overprinting.
It is great to have but not worth more than a day's take-home pay!