Should I get a 5090 or a strix halo?

tl:dr; RTX5090 for 3400€ or Bosgame M5 AI for 2500€?

I have a fairly new computer with a 5080 and 64Gb of RAM. I've been having loads of fun with local LLMs. In the end I find myself using thu free Claude and Deepseek V4 Pro through their API because it's so fucking cheap and way better than anything I can run on my machine. For some applications though, I have to use local models: sometimes for uncensored models, sometimes for privacy, sometimes I just want to have full control of the stack.

I use the same workstation to do video editing.

I'm considering developing a chat bot on which I might want to have multiple concurrent sessions in the future, but right now concurrency is not top priority. Fast responses are however, a priority, I'd want it to feel at least as fast as a human chatting.

I have ~3k+ now that I could spend on this cursed hobby. Should I:

1. Sell my 5080 for ~1k and spend the 3.4k on a 5090

2. Go for the Bosgame strix halo for 2.5k and keep the 5080

3. Keep my 3k and save/invest them and wait for prices to go down/my gear acquisition syndrome to subside/my adult rational brain to finally convince me that I don't need to slowly prepare for the impending post-AI apocalypse