This entitlement discussion is old af, here we go again.
Empire, I don't know anything about your postal system, but my country doesn't give me much shipping options either and the prices are pretty high too. I personally would never send plastic pins or fragile items stuffed in a jiffy cause that will make the shipping cheap, they will end up broken. And broken means paypal claim. Shipping it as parcel (cardboard box) would be the only way to go, it won't arrive broken.
And so what if you paid less for the item you are selling, you can ask whatever you want or whatever you think is fair & current market price. Everyone does that ffs. Lets face it, no-one is forced to buy it from you if they think it's overpriced. Overpriced items are not against LM rules, so even if you did overprice your things, you still haven't broken any rules. I know you sold 2 HD's (op and skirt/jacket set) and a D. Walkure set for what I think were fair prices for such super popular, in high demand cult status items. I wouldn't sell mine for less either, I'd be a fool if I did. Supply and demand right? Little to no supply is this case and in very high demand, of course they will sell for high prices. In some cases, extreme prices. Plenty of buyers seem to be willing to pay that much, even go into bidding wars to get the item they desire that much. They are just as much at fault as the seller for driving up the prices imo.
Are you a buyer? Don't like the price? Don't buy it or contact the seller and make an offer. And no they don't have to take your offer either if they don't want to. Stop acting so entitled.