Is it Rude to Back Out of ‘Best Man’ due to destination wedding’s high costs?

The discussion has resurfaced recently as a reddit user sought advice after he was asked to be best man at his friend’s wedding said yes then found out it was in Italy! 

Destination weddings are becoming more popular these days,  With that comes the rules and unwritten rules of such an affair.  If you’ve ever been involved with one, you now they are costly.   Is it socially acceptable back out of the wedding party if the couple makes it a destination affair?  The discussion has resurfaced recently as a reddit user sought advice after he was asked to be best man at his friend’s wedding said yes then found out it was in Italy!   It was going to cost him a couple thousand dollars to pay for his flight, train, hotel, meals and a boat tour…all on his own.  A lifestyle and etiquette expert weighed in to say it is perfectly ok to tell the groom no in this case.  If the costs were not disclosed up front, you can rescind the involvement.