This may not come as a surprise, but the practice of locking up expensive shit so people can't go grab stuff they aren't supposed to isn't unique to the Apple Store.
I've worked places that used this kind of process. It doesn't turn a 10 minute visit into a 50 minute visit without some kind of underlying issue blocking the cage pull from happening. Something along the lines of an interpersonal communication failure (forgot to request cage pull, person with key forgot/never got the request or the person with the key has gone into hiding ), a technical fluke (cage has electronic lock and it's EMP day), or a freak accident (person with the key, as well as the key itself, got disintegrated by ball lightning). As long as there isn't anything blocking, a cage pull is 10-15 min. If the person with the key was busy with a client, the requestor would normally take that over so they can run to the cage without the delay of having to finish that client.
Costco manages to do this well. If you buy a Mac (or almost any other high-value small item) you take a paper slip which is scanned by the cashier or self checkout. You then go to the cage and they hand you your item right then and there.
I've worked places that used this kind of process. It doesn't turn a 10 minute visit into a 50 minute visit without some kind of underlying issue blocking the cage pull from happening. Something along the lines of an interpersonal communication failure (forgot to request cage pull, person with key forgot/never got the request or the person with the key has gone into hiding ), a technical fluke (cage has electronic lock and it's EMP day), or a freak accident (person with the key, as well as the key itself, got disintegrated by ball lightning). As long as there isn't anything blocking, a cage pull is 10-15 min. If the person with the key was busy with a client, the requestor would normally take that over so they can run to the cage without the delay of having to finish that client.