Somewhere along the way, I think in the 1960s, the 135mm lens for a 35mm camera was touted to be the best thing since portholes on a Buick fender or tail fins on a Cadillac. I always thought it was to short for a real telephoto and to long for a portraits. Then the 70-200 or so zoom showed up and it was great. I always use a prime lens for portraits if I can but sometimes you are in a hurry. Some older zooms are pretty slow and those are what, I think, you find in the thrift shops.But you never know what treasures are out there.
On the wide side I feel the same about the 24mm, my lineup jumps from 20 to 28. The 24 is either too wide or not wide enough, something in my vision just refuses to see that way.