That's no problem, all the skeptics can buy under their own terms. You can ask for those things but don't waste peoples time after they package and prepare things to tell them in the last email you want a 50/50 deal. That's why I declined your deal, if I wanted to scam you as you believe I would have just taken the 50% so your logic there doesn't work because I declined the deal.
I'm in a city of 3 million, which is why I don't have a great following here, there is very little need for me sell something in forum when I can dump it on craigslist and have it picked up sometimes a few hours later.
I offered the 50/50 deal because I have a much more trusted reputation here than you do, generally it's the one with the 0 trust sells to the one with hero rating and very high trust at a ship first get paid later or escrow only. If I knew who you were outside the forum that would be a totally different story, but I do not.
Also, I had no way of knowing you had already packaged them as in my mind we hadn't even worked out the details.
I'm just informing you of my thought process here, I was nice enough to pay 50% upfront to a person with no trust rating so that you wouldn't have to come out of pocket for shipping. I am not willing to ruin my trust over some small amount of BTC, but I'm also not willing to take the ENTIRE risk, but I felt you were honest enough to do half.
If that doesn't make sense, then I'm not sure what else to say. I was the one here doing favors, then offered again to purchase in the normal fashion of the forum, with an escrow present, and that too was declined, thus the sale as well.