Yes, when you are used to going on vacations, going out to eat, etc., it is a sacrifice (to you) to give those things up. I see nothing wrong with the use of the word here. I would consider it a sacrifice if I couldn't have any of life's luxuries. I save and do all the right things too, but I enjoy ordering pizza on Friday night when I'm burned out and don't feel like cooking. Going to Disneyland every couple years gives me and my family something to really look forward to and dream about during the everyday working life!
I'm with Disneysteve on this one - and obviously another Disney fan
I need my fix! If I lost my livelihood tomorrow, of course I would have to make some sacrifices of luxuries for awhile - and I would most definitely consider them sacrifices.