Couldn't afford to not do it myself. If I actually took the bikes in for an annual tune up, just the basics for each kid, the wife and I we'd have 75.00 per basic tune x14 bikes. I can use that kind of money on a vacation or the regular supply of parts I need. In going over a few of the bikes this month 2 needed new chains and cassettes, another needed new tape, and a fourth needed tires. Parts was well over 200.00 labor on all that would have meant not doing one of them. Maybe when its only the wife and I and we're down to 2 bikes each I'll have to consider it but I'll probably be bored not having kids to juggle and will still need something to do.