And just because you check once, doesn't mean these links will still be active months down the line. This looks highly unprofessional and will make people think twice about buying from you because your credibility is in question. A customer may think you're not serious about your business if you don't even have your own domain name. It is best to pay the extra money and register your own domain name. Remember, there is a reason why web designers create pages the way they do.
Careful thought is put into each and every element.
No professional web designer we know simply slaps an animated gif on the home page just because it's pretty.