The cost of buying a new iPhone every 2 years is the same as the cost of taking 5 pictures a day on 35mm film. Therefore, if you take more than 5 pictures a day with your iPhone, you come out ahead.
This tweet is brought to you by me finding a box full of old negatives.
Even smaller scale, in 2014 I converted some dogecoin to 0.05 BTC, then moved the BTC into a brainwallet. I have not been able to remember the key ever since. Now it's worth $1600.