I just looked at a paper on Elsevier's site, and saw that it was $36, while a paper on IEEExplore was $33 (non-member price). I open to the idea that the IEEE is less expensive than Elsevier, yet not convinced that there is a big difference.
To be clear, the IEEE does have good journals, and is the best place to publish for many. There are countless volunteer reviewers and editors and officers who do great work. My impression is that the paid IEEE bureaucracy (in New Jersey?) are designed for a pre-Internet age. While cutting-edge cryptographic techniques is published in the journals, the IEEE email alias has terrible security. I guess this is a common story, and I'm expecting too much...