It could be a problem
At some point the demand for cheap leads to a reduction in quality of service. My corporate has, I think, learned that lesson. Others haven't. I've heard stories that some of the Dell warranty contractors here in the states are paying their techs less than $10/hour. Nobody is going to get quality tech support for that kind of money.
And as they have yet to invent the remote screwdriver, and most retail workers are not known for their technical ability, I'm not too worried on that account. Even if (when?) robots become cheap enough they can assign one to each store, it's still no problem. Somebody will need to repair the robots.
