Well, I wouldn't mock any of those glamours as most require a crafter who has dedicated their time to get to the point that they can synth it. With that out of the way, many glams are what we have the easiest access to. Those who desire uniqueness will often find themselves in a dungeon/trial/raid etc. for the loot, or the mats to craft the item. It can be understandable why this alternative isn't too appealing to some.

Anywho, as has been stated, a player can make their character look however they want to. They are the ones that have to look at it every moment they are in the game so they should dress him or her in a way that is pleasing for them, even if it isn't for everyone else.