I understand your point (and everyone else's - 
thanks for so many respones!!), and I've been 
burned by snipers as well, but....

There are still 5 1/2 days to go in the auction, 
there have been a number of bidders, and its 
already at the reserve.  I hate to be mercenary, 
but I *need* the money badly, or I'd never be 
selling this cel (its truly a first class cel). If
I end it now, I make one person very happy, and 
get back what I paid for it, minus shipping - but
I could piss off others who haven't had a chance 
to bid yet.  If I don't close it, I could get a 
lot more money, since there's been a lot of early
interest, and I only risk pissing off one bidder -
but I don't really want to seem too greedy.

I think all in all that everyone knows that the 
purpose of an auction is to get as much as you 
can.  I think I'm going to keep it running. Maybe,
as some people suggested, I'll close it early if 
they make an offer I can't refuse, but right now
it looks like I'll get more if I wait.

Thanks everyone for your advice - I'm still 
interested in seeing more opinions, because I've
wondered before about how people viewed this
practice.

Az, who wishes she could keep every damn cel, and
buy more!!!