I spy a troll... but equally, the 'dollars' rather than pounds suggests to me foreign parts so could explain the grammar (not grammer )if it's not a troll thread.
Secondly, if it's not a troll, $350 is nothing. Seriously. Cheap, cheap, CHEAP wedding dress. She wants to keep it, to look at it, to feel special, to not wear something someone else has worn, to not have anyone else wear it afterwards. You can compromise on a lot on things on the wedding day, but the dress isn't one of them!
Married my lovely husband on 21st July 2012 - wedding report here!