An important fact regarding CDMS is that Dark Matter direct detection experiments are only just beginning to probe the sensitivities required to observe Dark Matter, according to the theorists. The most popular WIMP candidate, the neutralino, is predicted to exist anywhere from an order of magnitude above CDMS's current sensitivity, down to several orders of magnitude below. The WIMP is well-motivated, and sure - it might not exist - but that will tell us at least as much about the universe than if we were to find it.

There really is a huge amount of research that supports dark matter in some form or another. Read up before you criticize CDMS as being a white elephant experiment!