Before revision:  As E[ R _\lambda] diverges to infinity, we scale with -\log(1-\lambda) and present a method to compute the limit \lambda\rightarrow 1^--E[ R _\lambda]/\log(1-\lambda).
After revision:  As E[ R _\lambda] diverges to infinity, we scale with -\log(1-\lambda) and present a method to compute the limit \lambda\rightarrow 1^--E[ W _\lambda]/\log(1-\lambda).