What started as a hobby hosting my own Exchange server for family and friends slowly became a part time job. From making sure the system was backed up regularly, to battery backed up, and not to mention making sure my internet connection was not disrupted by other projects eventually made the whole thing way more work and responsibility than I signed up for. Once the server went down while I was on vacation, and I felt terrible. I slowly migrated all my users off my Exchange server onto GMAIL for domains over the last few months and since then I've slept alot better at night. Once the project went from fun to work, It was more trouble than it was worth.