simple answer is this - if one insists on trying to see ’if it works’ just be patient and buy one someone is selling at a used price, then try it
if it works and you are happy, great...
if you decide that it is all b.s. and want it gone, just post an ad and as you can see, there are enough 'believers' that you will sell it to the next _________________ (fill in the blank)...