It's the thought process you learn by having some financial issues in life. You feel guilty for owning expensive things instead of selling them to buy other things.

I have the same problems with trading cards I own from a long time ago that are now expensive, I can keep them for sentimental reasons or sell them to put it towards some bill

OP has a valid question though.

If you think its insane to spend that amount of money on it (essentially: it's not worth that much to you), then you holding onto it instead of having $1300 is pretty much the exact same scenario? By holding onto it you're saying it is worth that much to you.

It sounds like believing you hunted down a 'deal' causes you to wildly change how you perceive value at an emotional level.

I would probably do the same thing. It's just funny to see expressed on HN where everybody complains that advertising and marketing are evil/scams and proclaims loudly how rational they are.

He thinks that way because it's the only correct way to think.

Try raising the value of the record and see what you think about it.