This is definitely something I remind myself of for any investment I sell and later on explodes. For bitcoin there were way too many highs that I definitely would have sold at.
I think many others, including me, have also the same experience of mining a few and then either forgetting or deleting them because they thought it'd never turn out to be worth anything.
Same. I mined 32 BTC circa ~2010-2011. Then I did a clean install and forgot I had everything saved on the HDD and nothing written down. I remember them being worth about $1 a pop at the time and thought "fuck it", but I never bothered minting any more.