You're right. For the most part, they were luxury items when I was growing up. We just got our first dishwasher and central air three years ago because our new (to us) downsized home already had them. We got our first window A/C around 15 years ago when our in laws were visiting from the south. It was around 85 indoors. We had the fans going. They went to the home store and bought us a monster sized window unit! I had still considered it a luxury item, so not necessary.
My Dad got some penicillin around 1944 when he was 9 years old. It was still new and very scarce because most went to war use. It probably saved his life. It definitely saved some of his hearing.
Yep, we're on the same page.
