Sometimes the sellers get e-mailed an offer that
they can't refuse, and end the auction early.
That's not uncommon to happen. I've done that
several times before.
I was eyeing that cel too, and a stuck sketch
wouldn't of made that big of a difference in
price to me...That's a nice cel...It should have
gone way higher than it did...But...Hey...You
never know unless you ask the seller directly^^'!
Hope that little bit helps!