What if...
You move? A bunch of weight is a real pain in the ass to haul, and if you end up in an apartment, useless.
If I had a permanent home, a house, I would go about putting a home gym together. Definitely. Getting equipment, used, might be a challenge and take time.
I used to work out in my basement...had a few hundred pounds of weight, squat rack, bench...best workouts I ever had, no shitty gym music, just my music blaring, and anytime of the day it was there.