After spending $100k in a year.. After doing the math, We decided to purchase three workstations at a total cost of $17k.
One is a GPU-based workstation with two RTX 3090s and an Intel i9–12900 CPU, and another two workstations with 16 cores AMD Ryzen 5950X CPUs.
It took us a few FTE days to set those up to our satisfaction with slurm, NFS, backups, and several other services.
We noticed that our RTXs, although considered gaming cards, are comparable (if not better) in performance to Tesla V100, which some cloud providers rent at the staggering price of $3.06 an hour.
tl;dr - They did the math.