You may find a white goose down duvet costing twice as much as another white goose down duvet, or even more. There are many factors which can affect the quality and therefore the price. Just remember, as with everything else in this life, there really are no bargains. A cheap down product will be filled with immature down, which will provide little warmth, and which will probably collapse after relatively little use. Shortcuts in the original cleaning and processing will have been taken, and this will often lead to odour problems. The Down Association of Canada has also found that a substantial number of inexpensive offshore products have contained high percentages of feathers, rather than down as promised on the label. Workmanship and design is generally inferior on cheap products as well. Overall, a "bargain" is usually a waste of money. A quality product will certainly cost more, but it will be warm and cozy, and last for many years. Something that cost s twice as much and lasts 10 times as long is much better value.