Christmas trees - real or artificial?

We have several trees this year all artificial. My tree from my old house, 7ft which is in the lounge, my wife's old tree from before we moved in together which is a little table top job as she used to live in a small place, and new for this year, my grandad's old tree which we inherited this year and is now in the hall decorated with half existing silver baubles and half home made twiggy decs sprayed up in gold paint