Actually no, I wouldn't sell them for a $100 000. 
I'd think it was a waste of the other person's 
money, especially for 12 cels.

As for putting money where my mouth is, I have 
comic books I know I could make a killing on if I 
put them up for auction on ebay. I collected 
Miracleman years before anyone gave a damn about 
the series. I found a near mint copy of issue 15 
for $3. In auction I've seen it go for $80-$50. I 
could get a lot of money for it, but I'm not 
planning to put it up for sale. I spent too much 
time and effort, three years of searching through 
back issue bins, to give it up for money. 

I remember watching a collector of movie monsters 
being interviewed, and he was asked how much his 
King Kong model was. The guy looked up at the 
camera and said zero. The reason why was because 
he was never planning on selling it. It's crazy, 
but that sort of made an impact on me. People 
talk about people being real collectors only if 
they spend X no. of dollars. To me, a real 
collector is someone who won't part with 
something, no matter how much money is thrown at 
them.       

Sometimes it is sour grapes to complain about 
this, but I think some of the comments express a 
real concern about the market. I enjoy repeating 
myself ad nausum about speculators, but they can 
ruin a market. 

As for why dealers are a special case -- 
sometimes they get cels from Japan and the studio 
themselves, things we wouldn't have a chance at 
getting if they hadn't have taken this trip. Some 
are even willing to explain their mark-ups, like 
Yann Stettler. Also, for the most part they love 
this hobby -- I'm sure that's why the person who 
runs Usagi House has a mailing list, and Yann 
runs this site. Speculators don't give a damn 
about cels, they love the money involved, and 
they'll go to the next profitable hobby if or 
when the market crashes. Maybe some of the 
dealers will too, but I have a feeling that more 
of them will stay then the speculators. Yeah 
okay, it's nauseating and sentimental, but in my 
mind a person having a passion for the hobby 
makes a difference.