Hi, and welcome to an addicting hobby. ^_^

The only machine made cels that I have seen are 
the reproduction cels released by a few studios 
in the past few years.  The most famous probably 
being the Evangelion set, which at any given 
moment there are always a few up on Ebay.  It’s 
not always easy to tell if a scanned cel is a 
machine repo or not, due to varying scan 
qualities.  If there is any doubt about a 
particular cel, ask here and I’m sure someone 
will be able to answer your question.    As for 
the machine printed cels value, they are 
generally much less valuable than hand painted 
cels as they can be cranked out in the hundreds, 
in the time it takes one hand painted cel to be 
produced. 

>P.s. Anyone knows where to get a Azalyn Cel from 
>Irresponsible Captain Tyler, the not OVA Series? 
>I searched all the online shops listed in 
>www.cels.org already. :(

Cels of Azalyn from the TV series are extremely 
rare.  And even the OAV cels of her are rare, but 
not quite as much. Usually any cel of Ayzaln that 
is posted on any of the well known anime dealers 
is snatched up in a matter of minutes, if not 
seconds.  I've only found a few Ayzaln cels that 
I've been there "first" on, in 8 months of 
searching.    I basically heard that most of the 
cels from the first part of the series, up to 
episode 20 or so, were destroyed, and that is why 
there is is so few cels out there.  Not sure if 
this is true, but is kind of seems true, as all 
of the tv cels I have are from the last few 
episodes.

There are a handful of galleries out there with 
TV Ayzaln cels, and every now and then they sell 
one or two. So there is hope yet. And even if 
they are not for sale, there is some nice images 
in some galleries. 

-Fenris-