I really dislike the auto-extensions because one 
of my biggest pet peeves are auction nibblers.  
The ones who will bid small increments until 
they are on top... and will repeat the process 
when someone else outbids them.  It makes me 
want to scream "BID YOUR MAX AND LEAVE IT 
ALONE!" LOL. ^_^;  I've seen auctions extended 
for almost 30 more minutes due to nibble-wars! 

Sitting around hoping someone doesn't extend the 
auction you are winning is pretty frustrating.  
I much prefer ebay's system and am very glad 
they have said they have no plans on adding that 
feature.

BTW - Auctions with no extensions are perfectly 
fair to everyone.  Everyone has the option of 
bidding whatever they want up to the last second 
of the auction.  If a person is trying to get a 
deal by not bidding what they are willing to pay 
(I'm not really sure how that works; the outcome 
would be the same if they would just bid their 
max to begin with), then honestly, they really 
don't have a right to complain about not having 
the chance to bid more when they are sniped.   
Snipers don't have some unfair advantage that 
others cannot take part in.  When placing a bid, 
if you ask yourself "Will I bid again if someone 
outbids me?" and the answer is yes, then you are 
entering in the wrong bid amount.