[quote name='UncleBob']It benefits you for the hour you're at the restaurant. It benefits the owner/manager every time he balances the receipts.[/quote]
What's your point? When I eat out, I care about only 2 things. Getting good food and getting good service.
I don't give a

what the store is getting out of it. That's what I want as a customer, and I like the tipping system as I get good service more often than not. Unlike retail where poor to average service is the norm. And unlike dining out in Europe with their no tipping expected system last summer where it was either no service cafe style or poor service every where I ate.
Regarding my analogies, first, when I compare unskilled jobs that pay crappy wages, you say it isn't a fair comparison because it isn't about the wages, it's because the employees don't spend as much time working "for" the customer. Then, when I make a comparison between jobs where people work "for" the customer, you say it's an unfair comparison because the other employees make better wages. When I compare the exact same job, just in a different country, well, that's an unfair comparison because they have a different culture than us.
None of your analogies work. Skilled labor gets paid more because they're skilled and thus aren't tip based. Those are career jobs etc. so raises and promotion are incentive.
Other crappy, low wage service jobs like retail simply made a decision at some point to pay minimum wage or over instead of paying less and having employees get tipped. And now that's just a social norm and hard to change. I'd be up for it, I already tend to shop at pricier places (i.e. Target instead of Wal-mart, Macy's instead of Sears or J.C. Penney's) as service is better. But that type of grand change probably just isn't going to happen.
Comparing to other countries doesn't always work due to different norms and cultures. Europe shows not having a tipping service leads to poor service and more cafes. But I'll acknowledge that tips aren't the sole reason for that as part of it is cultural work ethic illustrated by a common saying I've heard from several European friends "Europeans work to live, American's live to work."
Further making that point, service is great in many places in Asia despite tips not being the norm as the work ethic is much higher in those countries than probably anywhere in the world today. Hence why they kick the rest of the world's ass in education and will dominate the world economy by the end of our lifetimes if not before.
So there's just no use in making silly analogies. Our system is what it is because of the way it's developed over our countries history. You either like it and think it's a good system like me, or dislike it like you and others. No use in either side trying to make points with analogies. You simply like the tip system as you think it gets you better service like me, or your opposed to it and think they should just make a shitty wage like other serivce employees in different sectors like retail.