I do it because I lost my job about a month ago. I'm in Philly, and it's 1.10 per mile. Most of my fares are small 5-8 bucks a pop, but once a night I'll hit a 20+. I hardly see surge here, it seems like when I see the surge on the map and head that way, usually a 5 minute ride) I either get zero rides or the second I cross into the surge it goes away. It can definitely be frustrating at times but I figure I'm making about $90 a night on average and working Thursday-Saturday. I avoid Monday through Wednesday at all costs, there's no money in it at night. Now that I've been able to pocket some extra cash, I put my son back in day care and I'm gonna start working the mornings for a little bit until I go back to work. Right now the DNC is in town so I'm hoping that will give me a nice bump this week (last night was a good night - though the Uber lot and the way they designed it was downright awful).
But anyway, that's why I Uber. I need the cash between jobs to stay afloat and it's been a godsend. I plan to continue doing the Thursday-Saturday night driving after I start work to save up to buy a house next year. I love meeting the different people, hearing the different stories, it's an interesting "hobby/job". I truly enjoy it.