I basically do all my own work because for a long time I just couldn't afford to pay for someone else to do it, and it's become a habit.I'm surprised at how many people I know who get their bike serviced at a shop. I always thought that, after a few years, people generally did their own repairs once they knew what was what. But it seems I'm in the minority doing my own repairs. I don't know if it's just a thing that has changed over time or that I just grew up doing bike repairs so I think everyone does.