they tried with WoW, the ISP they went to wanted stupid prices for it so blizzard said lol cya... source google.com
Actually Internode have been offering for a few years now, but thus far no one has struck a deal. The biggest question is why can EA and Bioware "afford" Oceanic server for Star Wars: The Old Republic (which funny enough have a very large amount of people playing), yet Blizzard can not?