I was only interested in the Costco bike because I'm confident buying form costco.com and I know if I don't like it, I can simply return it to any Costco store. As a result, I don't have to worry as much about test riding it etc. So if it was okay, it might be a good leave it a work fun bike.

The Dahon's are a little hard to find. Most of the stores that might have it are a bit of a drive from where I live. The phoned a couple local stores that are listed as retailers and one said they didn't sell it and one said they have none in stock but can special order it for me (in which case I might as well just mail order it).