I think the sump should save me some money only because I have a tank sitting around not in use that I can transform into a sump. I plan on running 700 gph through it and having 10 to 15+ gallons of media. By my calculation that is about the same or better then the Eheim 2080. Right now my estemated cost it 250 so a huge savings from the Eheim. Eheim do rock though I run a 2080 on a 180 gallon and 2078 on a 120 and love them ; quiet, tons of media space and cheap to operate what more can yoy ask for other then a little more savings at the lfs.