While I cannot vouch for their quality, they tend to sell on ebay for anywhere from $70-$100 dollars plus shipping. Again, I have no idea of their quality, but thought I'd give you the info you requested,
Thanks for that, Juan. Dahon bikes should be ok quality, but with the small wheels, they're not very useful. I'll stick with my Twenty. I was hoping to buy the Dahons and sell them on ebay, but it's looknig like a crap shoot at this point.