Shag carpets and rugs are difficult to keep clean. This is probably why they went out of style for so long. Considering the advances made in the vacuum industry in terms of power and features, we should be in a better place today to deal with the dirt in our shags. The other aspect to keep in mind is that a great shag vacuum may be a single-purpose machine in your house. If you have a good storage area for equipment like this, terrific, but if you don’t, you’re finding a home for something with limited use. If you can select whether you have a shag in your home, assess how it will fit with the rest of the things you need to clean.