Was in Petco in Lakewood earlier today and stumbled upon a stack of assorted sizes of Aqueon heaters for 75% off. They are the glass ones, but maybe good to have a couple as backups if a heater craps out unexpectedly. If anyone's interested, they were in/on a bin marked clearance -- not in the fish section, but I think it was near the cat supplies -- I was heading for the dog food when I saw them. 
