But look at it this way, letting go of it now is going to save you a ton of trouble later, in the long term you'll be off cheaper and there is no chance of confusion.

Also if the other party is 'bigcorp, Inc' then you're setting yourself up for a legal fight at a time when you probably have better things to do.

EDIT: A name can not be 'perfect' if it is already taken, the domain name is not free or if somebody else already has a lien on it or is shipping something under that name.

I think you need to re-think your concept of the 'perfect' name :)