I've never actually made one and only play micro-stakes but have cashed out for $200 so far and have a small ($20)
bankroll sitting there. I play off and on, leaving it for long spells then returning again.
When I joined PS, I received tickets for a few freerolls. From the tickets, I won about $2 that I used to grind away with 10-25 cent SnG's and micro cash games until my first $150 cash out. I requested another $50 recently and will try to build the remaining 20 back up to at least $100 before casing out again.
Poker is a hobby for me, so even though it's basically free money, I still practice prudent bankroll management and have never dented it badly.