On: Why so many things cost exactly zero

[kccqzy]

Correct. I once pointed out to my friends who earns a five-digit salary every month (by no means impressive in the Bay Area) that he spent 20 minutes agonizing over a $2 payment. Before I pointed it out he didn't even realize it was irrational.

[onetimemanytime → kccqzy]

you donate $1 Million but get killed when a robber demands your wallet with $8 in it, cause you don't want to let go. It's not the money,

[lonelappde → kccqzy]

Spending is a repeated game. If you don't agonize, you have to pick either $0 or $2 *N for unknown N.

[e_y_ → lonelappde]

Also frugal habits learned from agonizing over $100 and $10,000 spending sometimes trickle down to those $2 decisions. It becomes an instinct even if it doesn't make sense.