I am not in the least trying to convert anyone to PP. I think it is fine to continue to do Momentum. I also think it is fine not to follow WW at all. I'm all for what works for the specific person.
I was only answering the question asked:
P.S. Was I the only one who was disturbed by everyone needing to purchase a calculator (regardless if it were at a discounted price) to follow the new program?
I was answering the question to simply state that it isn't required to purchase a calculator to follow the new program. That's all.