You should definitely get the cles! I had been eyeing it for at least 6 months before I finally gave it and purchased it last month and might I say it is most definitely worth it. I determine the "worth" based on the price and how often I use it and I must say that I use it very often (eh.. some of the time purposely finding a reason to use it). It was either the cles or the monnaie plat and I chose the cles and boy I must say I am very happy with my decision. At first I was skeptical because it is such a small item for $150 and friends who are not into lv have told me it would be useless. After purchasing I realized it is far from usless:
1) It is great for a night out at the bar, club, or a party if you do not want to carry a purse. A lot of drinks get spilled and sometimes I don't even want to carry a small purse. I can fit my license, cash, credit card, and a lip gloss in my cles. I then clip it to the hook on my jeans on the side and let it hang out. It looks very hip and stylish as long is you are careful no one will steal it from you... otherwise tuck it into the pocket.
2) Also great for the gym (I don't carry a gym bag) so I just have my license, cash, and gym card in my cles and I keep my house and car keys attached. Very handy.
3) I use it as a wallet when I carry small purses. My standard wallet is a bit big so it does not fit inside my smaller purses.
4) For the heck of using it, I toss it in bigger bags in addition to my regular wallet for other things.