I don't really have anything nice enough bonsai-wise... I enjoy the journey. I like collecting as it involves being out in the woods, exploring and enjoying outdoors. I like keeping collected trees alive and try to develop them, too.
There is no reason to put them in good soil yet.
I get positive feedback here and it pleases me.

Upbringing has a lot to do with this, too.
My grandparents were through WW I, October revolution, civil war, golodomor, WW II.
My parents were through WW II. All of them knew starvation at some point of their lives and shortages for the most of their lives.
I never knew any of it personally, only by their stories and carefulness of making waste...
That aside, I spend money on something I really need or something that brings me joy, but I don't like spending money unnecessarily.
No principles involved. It's just how I am.
I admire great developed bonsai, but I love my sticks dearly.

I am no young chicken.
My son will be stuck with all of it eventually.