I like to compartmentalize things. Break things down to simpler parts before stitching them together again. So I thought... what do I pay for when I'm buying something? What am I trading off? Which part is rationale or not? Is something more expensive cos it's better quality? Or am I just paying for convenience? Or am I buying a feeling? Or what? So I thought about a few scenarios... Currently I own a XiaoMi phone. It's cheap. I buy it as a phone. Nothing fancy. But I'm open to discuss about better specs and stuff. So I bought the phone off the retail shop, and paid $219. My wife bought the same phone online and paid $201. So I conclude that the difference $18 is the convenience of having the phone immediately instead of waiting for the delivery. Then I think about the new iPhone X. It's around $1000. I'm not going to go into detailed specs. That's not ......