A 24GB Nvidia RTX 3090 TI is ~2000 euro.
Which is how many months of Claude or Claude + chatgpt when Claude is down? And do you own anything after using those subscriptions? Can you pick and choose from dozens of models and whatever comes next? Can you play video games with your Claude subscription?
You can get them for half that price on Reddit used. I have a few. You will not get top-tier intelligence out of them. GPT-5.5 and Claude Sonnet/Opus are in an unbelievable tier. Not all problems need that, though. I have a Qwen-based agent write short websites for me to use and it is adequate to the task.