Carey.... I've seen many on the web selling between $25 - $40 and some between $40 - $70. Alot of these are simple butt or lap joint builds. I built this wine box for my daughter's birthday and she said a friend of hers felt I could get as much as a $75 - $100 for it. Maybe more.
I don't think people are going to spend alot on this type of box so believe keeping it reasonable and what the market will bear is essential. I'd keep it under $50 or less. That's my two cents.