Thanks for pointing me to this thread, Jan. I also vote for the ability to use our existing ChatGPT subscriptions in leu of tokens.
Of course I couldn't resist doing a price comparison
For my own purposes, the token system does seem a bit less expensive (for this month at least). Using GPT 4 (non turbo) I asked DesktopGPT, "What is the meaning of life?" It gave me a nice paragraph. That cost 6k tokens. Then I asked it to draw me a picture. It wasn't able to, but described what the picture might have looked like. That was about 2500 tokens. It looks like the price of tokens works out to about 10k per USD. So 6k for the philosophy question is approximately 0.6 USD.
On the ChatGPT site, I counted all of my prompts for the last 30 days. It was 30 for me, but that varies GREATLY month-to-month. Anyway, I think it's 21 USD per month. So that was about 0.7 USD per question for the last 30 days.
10 cents more per question.