I don't think you're nuts, but I probably am, because I've kept about 85% of the pedals that I've acquired over the years.
Most of them sit in my closet. Some haven't been used in a half a decade or longer.
The only ones I let go are those that can't do at least one thing with killer results.
I know I'm really certifiable, because I have at least 2 of a few of them!
If you're not using them, let 'em go. Unless they are collector's items, you can always pick up another one down the road.
"Being ashamed of our mistakes turns them into crimes."