600 usd for that no way$599, sure.
There was a recent discussion on a similar (used) item (http://geekhack.org/showthread.php?23763-Ancient-Datahand-on-fleabay). This one is bound to attract interest/comment by Input Nirvana and others.
@Input Nirvana - Thank you for an informed appraisal of this item's true value.
$599 vs $150 - the difference is huge. But then again, it's eBay - you never know when someone might do something silly.
When I put my ad on GH to sell my unit, I got a number of PMs from non-GH members that saw the ad from search engine spiders that had picked it up. So they are constantly on the prowl waiting to pounce :)
I bought a Datahand, for multiple reasons, one of which was to explore just how difficult/expensive it would be to produce something similar. Even ignoring the patent issues, there's a lot of components that make up a Datahand. It is MUCH more expensive for doing the tooling and to produce than a standard keyboard. IMHO, it isn't really economically feasible to consider given the current market for such keyboards. However, as more and more people use keyboards regularly as part of their job/leisure, I can see people coming down with injuries and other conditions that will require such solutions. It wasn't nearly as common for the general public to use keyboards back when I was young. These days it's extremely common, so in another 10, 20, or 30 years, I can see the market for these picking up quite a bit. Combined with possible patent expirations, it might be economically feasible down the road.
Does this mean you sold it? Your ad is still up!
I don't know, all you would have to do is use smaller switches (with lighter activation, I'm sure they make them) and a smaller stick than what is used with joysticks. This picture is from the bottom up looking at a joystick mechanism:Show Image(http://geekhack.org/attachment.php?attachmentid=34418&d=1323472809&thumb=1)
As you can see, it has four switches. Any switches could be made to work with something similar really. . .
OK, since you bring that up... You've seen the Lego DataHand (http://geekhack.org/showwiki.php?title=Island:10077) here on geekhack.org, right? http://geekhack.org/showwiki.php?title=Island:10077 (http://geekhack.org/showwiki.php?title=Island:10077)Show Image(http://octopup.org/img/computer/datahand/t/Lego-Datahand.jpg) (http://octopup.org/img/computer/datahand/m/Lego-Datahand.jpg)Show Image(http://octopup.org/img/computer/datahand/t/Lego-Datahand--Hand.jpg) (http://octopup.org/img/computer/datahand/m/Lego-Datahand--Hand.jpg)Show Image(http://octopup.org/img/computer/datahand/t/Lego-Datahand--Chair.jpg) (http://octopup.org/img/computer/datahand/m/Lego-Datahand--Chair.jpg)Show Image(http://octopup.org/img/computer/datahand/t/Lego-Datahand--Switches.jpg) (http://octopup.org/img/computer/datahand/m/Lego-Datahand--Switches.jpg)
-- Geoff