Fake ones gather dust and look...well...Fake!!!
And everyone can tell that the palm tree is fake and when people can tell its fake they think its cheap. Why not get a real palm tree and impress people and actually take out some time from your busy work schedule (1 minute) to water a plant...lol.. I don't think that's too hard. Also the benefit of clean oxygen (plants need us and we need plants) right!!
So Real Palms Trees are better than Fake Palm Trees.
below is a sample of a real palm tree and a fake palm tree...