Bests & Worsts Reviews from Amazon

I wish I'd read the reviews before purchasing. Had I, then I would not have expected a precision calibration tool made of - oh, I don't know - precise hard plastic. Imagine my sheer confusion and dismay when I opened the Amazon box to find the "pyramid," yet it was flat. And made out of bend-and-fold-tab cardstock. You know, the photographer cousin to Steak-n-Shake's kids' menu (fold tab A into slot 1, bend until B folds into C, and now you have a nifty car!). So okay, moving on from the cardstock material and the absurd price of $25 (they even printed on the bottom to recycle it instead of throwing it away. For $25, I'm going to hold on to it until it's yellowed and brittle and must be kept in a nitrogen sealed environment to slow decay), as other reviewers pointed out, due to the material and tab insertion and whatnot, it doesn't exactly sit flat. Or level. Or consistent. If a precision calibration tool is not precise, what good is it? If it were made of hard plastic, I think it would be a winner and I - along with several reviewers - wouldn't feel gipped. As it stands, $25 for an inprecise cardstock bend-and-fold pyramid leaves a bad taste in my mouth - and question over whether my lenses are actually calibrated correctly.