If you have unmounted your wood stamps..

Yes and no. I unmount only when I decide I want to use that stamp. I don't want to go to all the work of unmounting them and then have them just sit there.

I'm pretty much an unmounted person (from way before the MISTI was ever a thing) but there are some that I chose to leave mounted:

Everything House Mouse, because the images on the blocks are such a good coloring guide
My little alphabets that are mounted on pegs - because I am certain that if I took them off the wood, I would be losing letters right and left
A couple from Memory Box that have like a branch or something like that on the bigger flat part and then a flower or bird on the end - they are easier to use and store on the blocks the way they came

And when I finally bought Teeny Tiny Wishes from Stampin Up, I ordered that as wood mound. The sentiments are tiny and I felt that they might not stick all that well to the acrylic blocks unless I left off the indexing stickers - which would make it rather difficult to see what the heck the sentiment was Those are easier to use on the wood blocks, and they fit in the one storage box.

I figure that having a few left on the wood mounts don't take up so much extra space that I need to feel bad about not converting them.

Just large backgrounds because I thought they were easier to use on the blocks. Mind you I didn't have a huge collection of wood mount stamps. I've always preferred photopolymer.