could it be that YC invests mostly in people, not ideas? I mean humblebundle team is obviously very talented, they know how to capture interest of masses and th

could it be that YC invests mostly in people, not ideas? I mean humblebundle team is obviously very talented, they know how to capture interest of masses and they might eventually come up with other ideas in future, start other companies etc. $5k isn't such a high price for YC to maintain some sort of relationship with founders.