The difference in shipping prices is a dirty profit making scheme! There is no reason that the shipping price from the same place should be different but it is in so many cases. I've bought things off of ebay in the past not noticing that some git is charging $15 for shipping Dirty disgusting bastards trying to make an extra buck
Jikkenteki ships free to worldwide but some people see the cheap price tag & automatically assume it's shit. They can't believe that someone would sell anything good so cheaply. Yes people are cynical as fuck these days and that's probably why you only find shit in the sale bin in psy shop. If they put a new album in there a lot of people would just assume WOW!!! That must be so goddamn shite, I'm not bothering with that and it could actually have a negative affect on sales.
About the £10.00 price tag on OOOD - Free Range, well that's the strength of the Pound at the moment. When I was in England 5 years ago a CD would cost between £14 & £18 in the shops and it's the same here in Japan. I buy off Saiko Sounds because even with the shipping it works out much cheaper, but I'm closer to Hong Kong than you are in America so the postage would be cheaper. I must note that on orders over 2 or 3 CDs I find it cheaper to have it shipped via courier but I don't know what it's like in the US. I also find the shipping lightening fast too
What you really need is for the US$ to recover soon or maybe you could start your own business importing. You said there were many people at parties so there is a fan base in the US & probably everyone is sick & tired of shipping costs on imports. If you buy in bulk from the labels you could probably get cheaper shipping & maybe a discount on what you buy then you could sell them for a small profit to others in the US. Start small & build it up so you could be the North American Equivalent of Saiko Sounds