It's obvious this was brought up by the recent 
selling of the X Test cels at Chaos...So...Lemme 
explain a few things about X cels, and the test 
cels.

X cels have always sold at a high cost.  I have 
seen some cels go for next to nothing, when a 
specific shot, or cel with matching background 
will fetch anywhere from $500 to around $1000.  
Anything above that I fear for actual X/1999 
movie production work is getting waaaay too 
expensive for the series...Bo matter what the 
shot.

Now...X2...the mvid...Those are another story.  
Actual production cels from this can range 
anywhere from $300...To over $5000!!!  That's the 
only time you will ever see a cel from this 
series peak over $1500...s when it's from the X2 
mvid...and they usually have their matching 
backgrounds.

Well..That's not entirely true...The only other 
type of X cel I can see reaching that selling 
point/value...Would be...gee...X Hanken cels.

Which brings me to the test cels...

Most of the test cels Nick has gotten in are in 
fact actual MadHouse test cels.  Most people even 
have original drawings which have the madhouse 
seal on them, etc.  Half of the test cels Nick 
has gotten so far were test cels, used from KEY 
sequences in the Mvid.  Those KEY sequences were 
drawn...in GREAT Detail...By Nobuteru Yuuki...So, 
the detail in each cel is of the highest quality 
in that specific shot.  Now, the colors may be 
off from the actual production cel, or some key 
areas may not be painted in, but...If the shot is 
RARE enough, or sought after enough...It should 
fetch an admirable price...Compared to what the 
original would cost someone.  

For example...The 2 TEST cels I own in my 
gallery...The Purple-eyed Hinoto, and Kamui 
w/Kotori...If those were actual production 
cels...The Hinoto would easily fetch around 
$3000, and the Kamui would easily fetch around 
$2000.  Would I rather pay around $200-
$500...HELL YES.

Now...The other half of TEST cels that Nick has 
gotten...Were *ACTUAL* Hanken test cels.  
Remember what I said about X Hanken cels being 
worth?  Well...There you go.  I believe all those 
cels are up for a reasonable price.  
And...Hey...Guess what?  If they don't sell for 
awhile...I bet you can offer him something less, 
and he'd be able to work it out with ya ;P~.

Thos TEST hanken cels are dead on as far as 
coloring go, but the detail in them compared to 
the originals is a bit off.  It's not lacking in 
detail, but the details are positioned diffent.  
And if some areas aren't painted in...The lines 
are scratchier than others...Then this degrades 
the value as well.

As far as telling if these cels are actual 
MadHouse test cels or not...You've got my seal of 
approval, and my sources seal of apporval ;P!
It's true anyone can take a piece of plastic and 
turn them into cels, but these are legit.  They 
come with production material, and...Man...If 
someone went that far to put that much detail 
into something and turn around and sell it for a 
small price...I'm willing ot pay for it ^.^!

Hope this helps!  If you have any other 
questions...Feel free to ask!

~Ms. Poe