What makes anyone think they should get a cel 
for 
less than it's going rate? Why should they be 
more entitled or deserving of it, so much so that 
they get to pay less than someone else?

This is what supply and demand is all about, this 
is basic economics.

And where does shilling play a part in economics?

Finally, no one out there can be sure the 
price 
of any cel a schiller bid on wouldn't have gotten 
that high had the schiller not bid. There have 
been a lot of auctions that when I go to bid are 
just above my max, so I don't bid at all.

It's true that no one can predict the final price 
of the auction had the shiller bid or not. 
However, I think people get upset and angry at 
shill bidding mostly because it is an underhanded 
way to inflate the final sale price. The winner 
had to pay more not because the next 
highest bidder had a legitimate desire for the 
item, but because the shiller inflated the price. 
Wouldn't you be upset that for every auction you 
participiated and won you ended up paying an 
extra five, ten, twenty, or even more dollars to 
an unscrupulous seller who used shill bidding to 
pocket more of your hard earned money than the 
seller should have?

---Trebuchet