Thinking of a biofeedback unit 11/30/2023

I’ve been thinking about purchasing a biofeedback unit. I started watching some training videos that the manufacture offers. I registered their lifetime membership and they offer 9 training videos for free of charge for the members. The more I learn about the unit, the more attractive it gets to me. I am now eager to purchase, but I will need to wait for a while because of their high price.