Holy **** Batman! I’ll stick to my little nano tank, $26.99 for a new return ;HilariousIt can be crucial to have a backup, I don't know that I'll plumb mine in directly just yet if I get one but who knows. Basement sumps can be awesome but things like return pumps can add to the costs SIGNIFICANTLY. $1000 for reliable AC pumps or $2000 for DC options, having a backup certainly makes you pause for a minute on the wallet side of things