Guilt Free Pot Grown Christmas Tree

I managed to heave the christmas tree indoors today. It's looking a little straggly this year - it's seven feet tall now and will have to be planted out after christmas. I've repotted it several times in the five years I've had it and it's roughly doubed in size since then. It's in the largest pot I could find for it, and it was difficult to get it through the doorways because it's so tall. I'm pleased it's lasted so well, and it'll be nice to see it in the ground next year.
Before this one, I'd bought several potted trees but they always died after being planted out in the new year. The difference is that this one was grown in it's pot (I bought it from a garden centre) instead of being dug up and stuck in one. I'm slightly worried that it might grow huge when it's planted out, so it's gonna have to go a long way from the house.