A few (This photo is also missing my Takahashi FC100DF). I like having a range of apertures depending on where and what I’m observing. A little while ago I was considering thinning these down but instead I had a reorganisation of my astro cupboard and they now reside in there nicely.
Those are really gorgeous. I dont think I have ever seen a refactor I didn't like though. Tell me, do you really think your refactor overlap is not redundant, and you are more collecting things you like, then acquiring functional instruments? Put this another way, if you ridded yourself of half your refractor inventory, would you really have significant functional gaps, or is it more like you would just long for things you enjoy having?