I understand what you're saying, but my argument is that the 5K in credits are actually of fairly low value to the startups getting office hours, because they don't have real profits/revenue at that stage, at least not enough where 5K makes a difference to the long term survival of a startup.

If I'm a very early stage startup, I'm worried about being alive next year. Yes, 5K may help, but that 5K will likely not make a significant difference in my company's prospects. 20 minutes with an advisor at YC could completely change my company's trajectory.

I'd imagine there are very few companies that apply, and then get selected for office hours, that will walk away from the meeting saying "I'm so glad I did that because I got 5K in Amazon credits." That said, it is still a great perk.

If a founder works 10k-15k/hrs on a unicorn over 5 years its like 15k/hr for every hour they spend on it.

It's more than 20 minutes including preparation and travel time.