As a 22 year old, I'd happily give $1000 to go to a YC dinner.
Most aren't this black and white, of course, but the point is that a fixed amount of any asset can mean vastly different things to people in different circumstances.
I will add: I grew up relatively poor in Michigan. My parents income was less than $60k, so I couldn't really afford college. I moved into my own apartment when I was 18, and supported myself except for around $130/mo in cell phone and car insurance bills. The only remaining financial support from my parents is a $19/mo cell phone bill.
This year I moved to Silicon Valley with less than $3000 in pocket, and I now work at a startup.