I like expensive picks. They make playing a whole lot easier although I can't really explain why. My rice bowl does not depend on it so I don't really care about the theory. I have a V-Pick Psycho and I love how it actually makes picking easier & more fluid as compared to a Jazz III.
The benefits are there but as mentioned, the only downside is the price. Imagine you were in a situation where you lose that pick and your closest available replacement was a Jazz III. naturally, your playing would be affected & you won't like it at all. You could ruin a good show just because of a stupid pick.
I've concluded that although these picks are great, it creates a form of "dependency". As if you can't play with any other pick.
I don't know about you guys but I always lose my picks & it would be quite an expensive price to pay if I invested in a few V-Picks. Although I prefer the V-Pick to the Jazz III, I'd rather use something that is readily available as opposed to something that I have to wait 2 weeks to reach my doorstep.
Just my opinion. I wonder if any of you guys feel the same.