Without a doubt, the Rider Rider is the lowest price Mushroom knife on the market. However it is an excellent knife with terrific razor sharp blade. While 440A might just be overkill when it comes to cutting soft mushroom, I think it will hold an edge better and will slice faster. The knife only has a key ring hole so you'll need to supply your own snap for attaching it to a belt or pack. (I've already done this.)