Some people just don’t like domains with numbers in them – but the answer as to whether or not they are good depends on what exactly you are trying to do, and what message you are trying to convey with your business.
For example, we have the domain hat1.com Not hat2, not hat 3, 4, 5, 6, 7, but hat1 which is the first and best of the hat domains. Also we have mark2.com which is a very sensical domain name where the number enhances the domain name.
So as you may see, in some cases adding a number adds something to the domain, conveys some sort of meaning. In many cases it is quite all right to have a number in the domain name, and these are just two examples of Quality winners that we have and are holding for you to buy.