"more because it's an unsolicited offer to sell my rights away." Most people don't think in those terms. Also, you're not giving up 'rights' you're willingly

"more because it's an unsolicited offer to sell my rights away." Most people don't think in those terms. Also, you're not giving up 'rights' you're willingly not doing something. You don't have a 'right' to Facebook anyhow. I think what you might be getting with ice cram is the 'optionality' value. Sure, you ate ice cream 20 times last year, but this year, maybe you're at your kids b-day party and want to eat with them! Or take a toor of some Irish Cream place with great ice cream. There's a big variability and unknown distribution of value, with a long tail in there that has to be accounted for. Often by instinct :)