so i needed new filters for my 50 gallon (was running AC 150 and 300, but they both seemed to die .. old etc) I was going to trade them in at pet city where i can get 40% off new ones. that same day in my local classifieds i noticed a fluval 404 for $100 (canadian). i talked him down to $80 as this isn't much more then the AC's would cost me .. is this a good deal? no media included but he's throwin in a bit of charcoal and 4 pads he has already used for a bit if i want them temporarily. good deal or no?