I think vesting is a good idea for the founders (it's in their best interest), but I think if you're asking for someone to commit to such a long time period (ie 4-5 years), then it better be really good equity. Even better than if it were just offered "up front." There are also opportunity costs to consider, so your early employees or co-founders could be off starting their own companies with a lot more equity. So it's probably going to vary by each person, but in my experience, the vested equity has to be really good or I'm not interested.<p>I've been in startups where the vested equity was really low, and I left (I was employee #1). I've also talked with numerous people who thought about joining the same startup, and refused due to a number of reasons, but low equity was mentioned as one of the first reasons.