I hear that.
So, from my own collection experiences:
- When I have given in to "why do I have this in a box", too early, I have regretted it terribly later. For me, "too early" is before I'm happy with my display setup. I've had several moments when I realized I wanted to put something on display that I already gave away.
But, 2:
I've never regretted gifting something to a young upcoming fan. Even when situation 1 above happens.