Suz, I too have Citizen of Humanity in my drawer, in the form of Rocket High Rise skinnies, and they are among my best, best pair. CPW is surely low. Although they are not 100% cotton, the cut of the high waist resembles the Dree. Mine cost around 250$ in 2015. I got them nevertheless after one inspection in the mirror, because I am exactly like gryffin on this. I have not looked back. Er, yes, I have, in the mirror, and it was always pleasing with these, whereas it's not necessarily always the case.
You say that in the store, the fit was nice on you, and I wonder what you mean by that... did it literally feel like a hand was hugging you firmly but delicately at the same time, lifting in all the right places, embracing your waist - your real waist - ever so slightly, like a loving child would, enough to elegantly hold a top tucked in, but with sufficient give that you can sit and have a complete meal + dessert without developping gallbladder rupture? Did it feel like your butt cheeks were kissed, not tossed, your hips were covered, not poked, your knees were left alone, your ankle genlty caressed right at the perfect point so to expose only the daintiest part, did you feel you could move and the garment would too, with some fluidity yet taut enough to retain its shape and not collapse on you if you were to take bigger steps? Could you imagine them making any ordinary jersey suddenly take on a new, bouncy life, just like a professional ballroom dancer makes the average dilettante feel lithe and skillfull?
If the answer is yes, then they are worth the price, ESPECIALLY in the circumstances of a credit in a store where nothing else fits. But if it wasn't like this, if the fit felt ordinary, the cut prosaic, the fabric too stiff in any way... then no. You may have to go back for a second fitting before you decide. If you do so, I recommend you bring different footwear in your purse to try them on with, given the shorter length.