It depends on how much you really like your bike and how much it'll cost for the transportation of the bike. Many airlines now no longer charge extra baggage fees (just the normal fee) if the packed bike fits their dimensions and weight, which most road bikes in a bike carrier will.
I'm going to Austria in June and I'm not taking my bike as there will be rentals there that are basically the exact same bike I currently own. So I'm not taking mine.