The Simplus is listed as $106 including optional headgear. I took that to mean the total price. However, when I went to check out, the bottom on the description indicated that I had chosen not to have the optional head gear which was $39. I understand that you cannot buy them "together" without a prescription but the price is advertised as $106 WITH the optional headgear which you can select at checkout. But, when you select it at checkout, the $39 is added.
Very confusing and a little deceptive. I would purchase the mask at $106 but $150 moves it into the "later" category.
I guess this old, blind guy is easy to confuse.