Should I upgrade RTX 4070 SUPER?

I've updated my gear in early 2025: AMD Ryzen 7 9700X, 32GB RAM, GeForce RTX 4070 SUPER, at that time, I was already worried that nvidia only provided 12GB.

now that I'm entering the local llm world, I am upset that I can't run the bigger models. For example, I can't run the ocr ones, like olmocr and deepseek-ocr. In ComfyUI, can't run any decent realistic image or video model.

and with the recent ram price hike, I don't want to invest in buying more of it for sure. so I thought maybe upgrading the gpu. I would wait for the next 1-2 years if nvidia release a RTX 5070 TI super with 16gb or if AMD release a competitive gpu for AI, if the price kept around $700-800.

But if the gpu prices skyrocket until 2028, maybe I could upgrade to a normal RTX 5070 TI right now.
IDK. I am really clueless and maybe you guys could have some different opinion.