I built a new PC about two years ago, and I probably got it at the last possible opportunity for a while. CPU and motherboard have come down by maybe £100 in between the two of them, but a 7900 xtx (or any other 24GB GPU) for under £1,000 now seems like a bargain, and £180 for 64GB of DDR5 makes me feel like an old man talking about the halcyon days.

Welcome to the club. If you're _really_ competitive in cs2, I'd swap out to a 9800x3d setup, but it's still a maybe. Very little reason to upgrade right now other than to run LLMs.