It's an addictive substance, the demand WILL pay more for the "fix".
I was addicted to the caffeine at one time. I would get bad headaches if I didn't drink it. Built in motivation right there, to want to drink it, and to want to stop.
Now it's a Luxury, maybe one every 3 weeks, at ~$5.30 USD.
Wow - that's expensive! That really sounds like a luxury :-)
Glad you're not addicted anymore though! I can drink it twice a day but also skip one day without feeling I need it, so I'm really happy about that. If I felt I was addicted I would stop for sure :-)