Owning a knife is a lot like owning a car in that you will have to do quite a bit to maintain the knife. Knives will not be all that useful to you if they lose their edge once all has been said and is now out of the way. The reason behind this is that they would not be able to chop things as effectively, so you will end up spending a lot more time and energy during the cooking process which can end up making it a great deal less enjoyable than might have been the case otherwise.
Sharpening your knife is important of course, but people often make a really big mistake when they are sharpening their knives which is that they go overboard in this regard. You should really read what Knife Guides has to say about self sharpening knife, since they draw attention to the fact that some people sharpen their knives far too often. You might assume that this isn’t the worst thing in the world for you to do, but you should try your best to remember that when you sharpen a knife you are basically taking fragments off of its edge.
This basically means that your knife gets slightly smaller whenever you sharpen it. Sharpening it a little too often will result in it not lasting very long so you should use self sharpening knives instead since they will always get as sharp as they need to be and no more than that. A really sharp knife can be great but there is such a thing as too much of a good thing so you should rely on self sharpening knives that are always accurate.