I have always been of the mind that the groom should wear a tux to the wedding. Apparently my future mother in law has suggested that my fiance just buy a suit instead, that way he'll always have one and it's a better investment than a tux rental, etc. My wedding won't be super formal, but my bridesmaid dresses will be long and I just bought a $1300 dress...so it seems to me that a tux shouldn't be out of the question? I am kind of at a loss about this. I am looking for advice. What do you think about a tux vs. suit? When is it appropriate for either? Any help is appreciated.