I got to see the new terminal for the first time last week - pretty snazzy, but not 6 hours worth of snazzy. But it would be fun thinking of ways to spend that free $300 worth of flying!
If you are thinking about the Alps, I might suggest flying in to MUC and taking the 2 hour ride train down to Kitzbuhel, which is a great little mountain town and a lot less touristy. Then again, flying in to INN would be fun if it is possible on codeshare.