Weird Mascara Wands

(Bourjois One Seconde Volume,Alexa Chung for Eyeko, MUA Lash Boom, Eyeko Curvy Brush)

What ever happened to a good old mascara brush? I feel like mascara wands are getting odder and odder. Who comes up with these crazy designs? Remember that Bourjois mascara which rotated or the Givenchy wand with a massive ball on the end. And have you seen the Upside Down Mascara from Sephora - now that's crazy. However, all these are still not as weird as the first ever mascara which resembles a mini toothbrush.

You see all these beauty brands launching new wand design every month which claim to be the next best thing but I always wander, does it even matter what the brush looks like? Isn't it more to do with the formula than the wand?