I have a 12 Pro and will be upgrading to a 17 Pro this fall. I always look for significant spec jumps when determining when to upgrade. For me, the addition of 5G and the 50% increase to RAM (4 to 6GB) was the main driver of me upgrading from my 6s to a 12 Pro. The 17 Pro is getting a 50% increase (8 to 12GB) and that’s enough for me to finally upgrade and feel confident that I’ll get years and years of use just like I have with my 12 Pro. Apple Intelligence doesn’t factor into that decision but will be nice to have and could prove to be useful once the technology is sorted out and matures.