The store from which I bought the dryer will only tell you what day they will come to do repairs--they won't give you a window of time for the day until the night before. Consequently, to get a dryer that is under warranty repaired, one might well be required to give up two days.
Because professors have a lot of flexibility in their jobs, this is not a huge deal for me. For my wife, however, who is a phycician, this would be a big deal. It would also be a big deal for any production or service worker who has little to no control over hours worked.
The appliance store that sold and will repair the dryer has essetially asserted a property right to its customers' time--it is imposing costs that it is not forced to bear. I am not sure whether it is true that this is happening over larger and larger swaths of the economy, but it sure seems so. For instance, sometimes when I want to change a plane ticket, I am not allowed to do so on the web. When I call the airline's number, I am sometimes required to wait on hold for a long time before I can talk to someone. Now it is possible that the time saved on the web when I use it and the lower cost of airfare makes up for the cost of the dreadful phone service, but I am not sure.