I have a Phil & Ted's Sport w/ doubles kit that is just sittin' in the garage. I think it has been used maaaaybe three times in the past two years (turns out, we only used the double for running and we had the BOB for that). Anyway, I am going to list it on Craigslist this week (I'll post here first), but I was wondering what a fair asking price is.
It has all the parts and manual. Mine is red, not navy and has a black/ grey "grafitti" print on the inside (which you don't see unless there isn't a kid in there).

Re: Fair listing price for double stroller (not BOB, NoVa- don't get your hopes up)
Oh, MC, you are such a tease....
But to answer your question, I have seen these on CL for ~$300 if that helps.