I'm 36. It happens bit by fucking bit. My studio right now:
Scarlet 18i8
Scarlet 4i4
Krk Rokit5, x9 (5 on 18i8, 4 on 4i4).
Shure sm7b x2, Sm57 x4, sm58 x4
9 guitars. 2 basses. A ukulele. Banjo.
Engl invader II, Mesa Boogie JP-2C and a Laney VH100R
And orange 2x12, a marshall 4x12
Kemper, fractal fx II
Like 20 pedals.
MIDI switches/pedals/controllers
MIDI pianos (weighted keys digital frand piano).
Don't get me started on my home server, and VST collection (served to Windows, Apple and Linux clients on the network). Ugh that setup was a nightmare. Reaper rules.