It shouldnt. However it is always good to get the best you can, because you never know what other projects you may want to do with it, and a great looking parent means a good chance of great looking offspring.
I mean think of it this way, you're spending a couple hundred dollars, when next year they may cost half what they do now, what's spending the extra 50 bucks to get a gorgeous one from a reputable dealer? That snake will go on to produce better looking everything and allow you to charge a little extra for what it produces. Even if you just want it to look at, the best lesser looks a lot better than the average lesser.