Maybe I just missed it, but I like being able to preview what something would look like before I buy, loot, trade or craft a piece of armor. Especially if you have more than one style available to you - is the orcish better looking in your opinion than the Altmer? Should you make your bow a Dumer or a Redguard style?
Definitely not a "deal breaker" by any stretch and it may be something I overlooked but it is a feature I definitely missed when I was crafting things