www.bikepedia.com shows that the MSRP of the Ruby Expert was $2,900. This is a fairly high-end bike. It would be a lovely gift if it's a good match and the price is right. (Has your wife expressed interest in this particular model? What type of riding does she do/plan to do?)

Just my opinion (which is admittedly not expert-just gut reaction), but after a few thousand miles of use, I imagine there will be at least some wear and tear on the components.

Does the current owner use it to race? (Which would make me concerned about crashes and possible frame damage...) What is the asking price?