You are splitting hairs hereIf I say I am taking a vacation and am going to come back refereshed and you say "no, it is because I am going to enjoy life", If you still have to come back to work then the difference is moot.
The difference is, if my company said, "instead of vacations we've invested in Refresh-O-Pods; you will each spend a day in them and come out refreshed for work" I'd say fuck that.