Now I understand and accept, what shipping costs means: It is not the actuall shiping cost for delivering the goods to my home, but my pledge to make worldwide shipping possible. In some countries these cost are lower and in others they are higher.
So people in contries, where the actual shipping costs are higher, are able to pledge and the EOMA68 can get a foodhold in these countries too.
I was misled by the term shipping cost and as I don't want to give more than the neccessary money to the delivering firm, I thought, bundeling would make it cheaper. So maybe CrowdSupply should make that clearer,
Wolfgang