To keep or not to keep

Chloe has out-grown many of her stuff, and I have a bit hard time letting go stuff sometimes. With limited space, we will have to let go some stuff. Well, should we keep for the next one, but what if it's a boy? or when is the next one coming? Her Bumbo seat, she doesn't want to sit in it anymore, which I am selling it on Sunday. Rainforest Jumperoo which she hates to be in it now, although she still can use it, but it's not been used much now. She also doesn't play her Gymini playmats either which I would have to put up for sale soon. I am sure you can buy better stuff in a couple years, but I suppose there is a sentimental value. Oh well, out with the old and in with the new.