You should also note that promo codes can give you either a cash discount or additional free features - for instance, you could get two, three or even seven total lifetime domain registrations (lifetime of your hosting with DreamHost). Alternatively, if you’re going to be hosting an e-commerce site and need SSL, it would behoove you to get a free lifetime unique IP address - you still have to buy a cert, but you’ll save the ~$48 a year that would have to pay for that unique IP address.
There are lots of codes around and as everyone has already said, you should feel free to choose the code that gives you the best deal.
Free unique IP and $67 off with promo code [color=#CC0000]FLENSFREEIP67[/color] or use [color=#CC0000]FLENS97[/color] for $97 off. Click here for more options