In response toDebtKid's dumbest purchase, I really had to think about this one since I generally am happy with my purchases.
My dumbest purchase would have to be the 72 gallon pond kit I purchased at an insane price a little over a year ago. This pond kit looks so cute and was only less than $40 SHIPPED! WOW!! These things normally retail for closer to $150.00!!! What a STEAL!! I wanted a pond more than anything - I just love aquariums inside and little ponds outside. How great!
BUT... I live in a condo... I don't have a place to put this thing, so it just sits in the box collecting dust.
I wanted it so badly, can't use it, and could have used that money for something else.