I was the one, who posted the $15.00 cash or paypal offer.....but, I also included quail racks and hardback/softback books, to my offer. ( yes, the dreaded book offer LOL )
From what I read, on the swap rules....offers are to be equal, to the worth of 6 purebred hatching eggs. Now with that being said....we all know that the worth of 6 purebred hatching eggs, differ from breed to breed. So, with no set in stone swap standard offer worth....I thought $15.00, would be a safe, middle of the line offer amount.
Some of us offer swap offers more than a $15.00 worth, others offer less. As long as everyone is happy in the end, with their swaps, it's all good fun!!
It worked out great for me, as I was happy with the swap I accepted... and the one who took my $15.00 offer... well, she was able to offer up a swap of her own, as the $15.00 paypal payment from me, helped her cover the shipping charges for the eggs she was sending out.