I have worked as the first employee in 2 different startups, and as an early employee in 2 more. Some of the reasons for joining, assuming low salary and low eq

I have worked as the first employee in 2 different startups, and as an early employee in 2 more. Some of the reasons for joining, assuming low salary and low equity (non-cofounder) role: I would want to work on your idea for free as my side project; I would really like you and believe you will succeed; I really like working for you and learning from you; I believe the company will grow really fast and I will grow with it; I believe what you want to do is really cool, and it's a great opportunity for me to learn it (e.g. new technology, a killer application no one has thought about yet, etc). Having said that, the above reasons work for junior people only. By now I have gained enough experience to be a cofounder, so I'm not likely to work with no pay and no equity - by no equity I mean anything less than 10%, and no pay = anything less than 150k.