You're missing the point, the whole reason why I 
posted a reply.
You seem to think just offering piles of stuff 
and saying "I'm serious" is going to make the new 
owner cave, but it may very well be that this cel 
is a dream cel of it's new owner, too, and it 
seems like you need to prepare yourself for 
the possibility that no offer you can come up with 
will persuade them. Personally, I like the cel 
you're wanting tons more than the one you're 
offering as an incentive...and that may be the new 
owner's case, too. You can't have everything, 
everyone in this hobby has to come to terms with 
it at some point. I've offered some of the 
regulars here a LOT for cels they have that I'd 
like, but they don't want to sell them, it's their 
right. Sucks to miss out on a dream cel, or 
know someone else has the cel that you just 
"feel" should be yours but that's the breaks. 
Appreciating your seriousness means squat if 
he/she wants the cel themselves. I'm just telling 
you that you probably should stop, take a 
deep breath, and realize that you may not get it, 
and frankly, if I was the person you were 
pursuing, I'd be a little scared of the vibe of 
"mania" that's coming off your posts.