I think that you have made a great decision! This way, you get to help out your family with all of their bills and yet enjoy something that you really want all the more without feeling any guilt about it. I commend you! I think this is a great compromise and since you will be helping out, you can then use your disposable income as you please and without question. Congrats and ENJOY that new Chanel bag. This is a great time to get it as once you get married and have kids, there will always be other priorities for your money.