Huh, intetesting. I didn't think they were that popular. I'm sure I've seen them on the bay for not a lot. I bought one from Hot Topic on sale back in '09 simply for the cool slurm cans, as I only have one that actually held the drink (and you know, it's all long and skinny and un-can like).
The thing is, Liar's Dice was only sold in America, so I can only buy it from Americans on eBay. Most of them don't even offer shipping to Europe, and if they do, it's super expensive. Also, according to past sales on eBay, only two of them were auctioned during the last half year. And one of the two was missing a die...
Unlike Monopoly and Yahtzee, both Liar's Dice and the playing cards aren't exactly well known, making it really hard to find. I was lucky enough that I was going through the "how much ya got 2.0" topic here, noticing that Magmux had the Liar's Dice game in his collection. And in his post, he mentioned something about toying with the idea of selling everything. I checked his latest post and saw that he actually put many things up for sale just two weeks ago. I contacted him and he told me he wasn't even going to bother to sell the Liar's Dice game, but that I could have it. Along with a brand new tin of playing cards. So I really lucked out here.
I agree that the Slurm Cans from the game look a lot better than the actual Slurm Energy Drink can.