I have seen just now 10 000$ fee per 1 transaction to win (or lose!) gas war in Zebi crowdsale https://etherscan.io/tx/0x2d83c31b6885df5445f363c80cf9060d2e6edec935621273046ef17319455f4d How much did you ever see? Any nice examples? 
Transfer contract token! Can increase transaction costs! Currently ETH transaction fees and tokens have dropped dramatically! Should be checked and selected accordingly.