You tell me what I’m doing wrong! I posted this question on Apple’s Support Communities
I have now upgraded to Yosemite 10.10.1 and I still can NOT install iTunes 12.0.1. Please Apple, help me with this.
The day after I installed OS x 10.10.2 iTunes 12.1 had no problem downloading. I guess I just skipped 12.0.1 all together.