If you're cutting a variety of materials on a daily basis or even less often, you may be wondering if you can save some money by cutting paper, stock, foam, or mat all with a rotary trimmer rather than buying several cutting units. The main problem with this idea is that foam and mat cutters typically use a straight razor that is inexpensive to replace, which is necessary because of the wear these thicker materials can put on a blade. Constantly replacing rotary blades (round, robust units often enclosed in plastic and installed as a single unit) can become very expensive. Compare a pack of replacement blades for a foam or mat cutter to that of a rotary trimmer. For a foam or mat cutter you can get a pack of 100 straight razor replacements for under twenty dollars; A single rotary blade might cost you fifteen to twenty alone. With that said, you can see the initial cost to buy a separate cutter is well worth it over time. I know we say this often, but don't skimp on quality and price early only to regret it down the road! If you have any questions about specific rotary or foam & mat cutters, please let us know!