I think this will be more secure since the address is single and cannot be faked but what I am thinking of is the cost of shipping to individual country, how can someone use 15$ to ship in $5 worth of item, this might be better if it is a software.
I order $1 things on eBay all the time - some of that goes to shipping.
The idea is that you'd order 10 of them for different times and whatnot. $5 shipping, shipping is less than 10% of the cost. They'd be so small that it wouldn't be an issue, just a little bubble-wrap packed envelope would be perfect.
You are correct, I did not even think of buying more than 1 piece earlier and I thought the shipping will be costly but buying even 5 pieces will still cover the shipping cost.