Comment by scruple
Under $100:
Gymnastics rings and straps. A Lebert Equalizer.
Under $1000:
A squat rack, barbell, iron plates and bumper plates. Adjustable bench, adjustable dumbbells. A collection of kettlebells.
I started taking my strength and body composition seriously in 2018. To that point, I had been a (ultra)marathoner for the previous decade. Prior to that, I was in the military and trained in a hybrid fashion. But I had gotten pretty out of shape between separating and picking up endurance events. But then I had neglected strength for such a long time.
Today I am stronger and with a better physique than I had over 20 years ago. I also have a resting heart rate that's in the mid-40s, while I myself am in the mid-40s. I lift 2-4 days per week, and I do conditioning 2-4 days per week. I cycle my training with the seasons, I'm currently moving into a more lifting focused phase of training as we move into and through the colder months. In the spring and summer, I focus more on endurance.
Gymnastics rings are one of the best things I've bought lately. I already had gym equipment at home but rings are something else.
Once you try them you realize you're not strong enough and you have a lot to do. And I also feel the workout is different because it's me training on the rings, not me lifting something heavy. They are very versatile, you can do many exercises anywhere you want.