For a long time I have not had a blazer look that worked except for black, which is really getting rather harsh. Plain navy hasn't worked well with my items, and gray has been hard to find and I just have not managed the "one blazer to rule them all" find-- partly color, fabrication, and length (pants vs skirts).
In the past few months I really needed outfits that had professional-looking toppers and that are not black or too winter-only. After a long dry spell, I just happened to find several blazers and jackets that work. None work with everything, but each one works with several skirts or trousers, though there might be a few "best" combos because I am picky about lengths and styles of top + bottom. Each one actually works with black bottoms, which is important.

Photo: Johnston & Murphy cotton stripe (found in airport shop!)
BR gray tropical wool, Lauren light gray silk, AT navy tweed with black trim ( not a blazer obviously, but this fabrication works really well with black and is less harsh than dark navy).

I didn't set out to add so many at once--; the J&M and light gray were hard to pass up because the fabrications, cotton blend and silk blend, are less common, as are the colors. I hope they all work out and I don't have blazer overload/regret, because I don't wear one every day, even. This was definitely a "scarcity mentality" situation where I felt I might not find similar, later so may be all in my head!
Style-wise I still like a non-blazer jacket such as refined safari or such, but these have been hard to find in the right colors or styles.

Have you encountered some kind of streak where you add an array of items that are outfit-creators, but you wonder if they'll get enough use?