Your customers won't remember your URL, you have to start from zero with google when it comes to SEO annually, you end up with a steadily increasing number of d

Your customers won't remember your URL, you have to start from zero with google when it comes to SEO annually, you end up with a steadily increasing number of domains you have to own in order to redirect to your current one, you need to purchase future domains so I don't buy next year's and steal it from you and make it redirect to meatspin or imitate your site and steal information. Sounds like a big hassle for small novelty.