A year or so ago I bought a case of this stuff...I think it was 6 cans but I cant find the receipt. So I go shopping for it online this morning and I find MDI Products who makes the stuff and its "on sale" for $15 a can??? "Save $5 per can".....are they nuts??? I cant imagine I spent nearly $100 for a case of this stuff but maybe I did. I like the stuff as it makes deck cleaning easier but at that price I'll go the PAM route even though it doesn't last as long.....am I just forgetting how much a can of this costs???