Couple of computer prices

[Arkman]

I'm looking at getting a base model computer.  My current set of gauges broke and I need to buy some new ones and so I figured I'd look at getting a simple computer.  I'm looking for used computers for the most part and wondered what you guys thought about them.

The Oceanic VEO 100 NX w/compass.  New it appears that this computer was approx $430 but isn't availible on most online retailers now.  It has the ability to do nitrox, but as of now I don't see my self needing that.  But I guess its nice to know that its there.  I can grab this for $215.  Seems like a good deal.  1 year old he says in good shape.  It about 50% of of retail.

The Oceanic DataMax Pro.  I can't find much info about this computer.  I think its fairly old.  As far as I know its not the Pro Plus or the Pro Plus II.  Just the normal datamax pro.  It seems like it may function for what I need but does seem very outdated.  Doesn't do nitrox but thats fine.  The little bit I found about it makes me think the going rate should be sub $100 but he wants $225.  Is there something I'm missing here?

What do you guys think?