How much is enough?

[Serge S.]

2009 - 2012 were fantastic years to quickly accumulate wealth. Many of us took advantage and the ones that were able to buy and hold in mass have built substantial balance sheets. 

When I first started, my goal was to simply have enough passive rental income to pay my own mortgage in the case I got fired from my corporate job. Once I achieved that, the goal changed to have enough to pay for all my living expenses. Once I achieved that it became 100 doors. It seemingly never ends.

So here we are in 2015 and the game is much harder. In speaking with BP veterans it seems like we all continue moving forward. My question is, when is enough enough and what does "enough" look like. Is it $10k a month in passive income? Is it 100 doors? Or is it never enough? When do you take account of what you have and shift to work to protect your assets rather than risk them to grow further?

@Ben Leybovich @Steve Olafson @Brian Burke  interested to hear the pros that have been through multiple cycles and had the opportunity to hit critical mass in their investing careers. Also interested to hear what the plan over the next 24 months.