The basic fact though is that for the majority of users who used to clear out their DVD cupboard on 99p auctions , that item will cost around £2 to post within the UK. Ebay chose the course of action that required the least cost to themselves, improved their margins the most, and was the most onerous to the seller.
The larger they become, the more unpleasant practices they seem to force upon their users. I personally pay through Paypal with my credit card purely because it provide me with some protection on purchases, despite Ebay constantly trying to persuade me not to (I suspect because it limits/removes their liability should the goods not be delivered), and was genuinely pleased to see their attempts to force Australian users to pay through only Paypal were shot down in flames. Its only a matter of time before the same tactics are adopted in other countries, and succeed