I'm a real flower girl. I like the smell of fresh flowers and I got married in the jungle on a beach...it was a very natural setting so for me, using fake flowers didn't fit. If I got married indoors some place where fresh flowers were out of season maybe I would see it differently, but I didn't fly to a natural paradise surrounded by gorgeous real flowers to use artifical ones.
Maybe I'm lucky because the florist got my bouquet right but honestly even if it was wrong I would prefer any real flower to the alternative, even if it was a plain old daisy.
I also knew the idea of saving them sounded good but realistically I wasn't going to look at them all the time and they would just be one more thing to pack up and take with me, so I didn't care about it. Personal preference.
Having that said, many people I know used fake flowers and they look awesome. If you have plans to re-use them later and don't mind that they aren't fresh flowers then real touch may be for you.