Not necessarily.  I remember that before the
advent of "Buy It Now", I'd never look at auctions
before the last 24 hours as that's when the real
bidding takes place.  Also, if it's been 5-7 days
since I last looked at a cel, I may not remember
which exact cel it is without a picture.  So, if
I look and it's at $50 with an hour to go and no
picture, I may not remember if it's that nice one
that's a steal at that price or that so-so one
that I might go $30 max on.
Btw, a suggestion to Brian..find a free webpage
hosting site to use as a backup and include an
url in your auction "If the image doesn't appear,
try blah"