Hi everyone! I'm looking to book an award ticket using my Delta Skymiles around 12/27/11-1/12/12 (dates are flexible). Do you think 170,000 (First Class) on Korean Air is a good deal? Or should I just book 85,000 (Economy) on Korean Air? The other option is to just pay for the ticket--- about $1600-$2000 economy. Thanks for any input!