I love hearing what my PHH has to say. He sees it in the most logical way... not influenced by fashion magazines. I don't always listen to him, but in the end, he often turns out to be right. But I realize it after the fashion has changed and something that was really "stylish" is no longer so, and I see it for what it really is.
However, sometimes something that is fashionable at the moment, is a lot of fun to own and wear... so you have to decide whether you want to be classic or trendy. You may not like the bag in a year or two... does that matter to you? If it doesn't, I say have fun with it now.