From my perspective, the biggest problem is that I am just not going to be using it 24/7. Which means I’m not getting nearly as much value out of it as the cloud based vendors do from their hardware.
Last but not least, if I want to run queries against open source models, I prefer to use a provider like Groq or Cerebras as it’s extremely convenient to have the query results nearly instantly.
[1] https://www.epa.gov/sites/default/files/2017-01/documents/pe...