Personally, I've never understood their appeal. They are expensive, add weight, can make a bass hang incorrectly on a wall hanger, and it's just another moving part that has the potential to fail. Besides, I can tune up or down in about the same amount of time it takes to flip the lever. Why bother?
Jimmy M covered, nay, refuted your points quite well. I can only share the sentiments and add, I've installed 6 of them, mouth one ever broke, never sat funny on a stand (I hate hanging stands anyway, but never a problem when I just had to use one). Expense is relative and once you set the stop for correct tuning when you lower the pitch, there simply no way you can change the tuning as fast manually and I've certainly tried.
It's fine if you don't like the drop tuner idea, but that's the only valid and legitimate reason for not using one. You aren't making a very good case against them.
