I think the mbg is pretty essential given the nature of the qvc shopping experience itself: telly selling and all the enticement of that - the temptation to make an impulse buy is not to be underestimated, particularly when you first start shopping with qvc, therefore the mbg seems a moral imperative! The mbg is also important, given the obvious fact that you are not actually seeing the products 'in the flesh' until you get them home. In my own experience, I only tend to order cosmetics/beauty products I know I 100% want, so I've never needed the mbg for them - if I've been tempted but am unsure of a product, I check it out in a 'real' shop first; but it's ok for me to do this because i live in a large city with easy access to shops - that's not the case for some people. (I'm more likely to rely on the mbg for jewellery, funnily enough, because the selection of jewellery you find on qvc is great and most, if not all of it, is not in the shops; I find you really just don't know what something will look like until you try it on, and the mbg can definitely tip the balance on weather I purchase or not.)