Assuming that the 80-pound (36.3 kg) stainless steel block is a solid cube, its side length would only be 16.6 cm (6.5 inches). (The density of the most common stainless steel (304) is 7930 kg/m^3.) Not nearly as big as the picture suggests. Still, it seems like it would be an awesome addition to my kitchen.
It's just not solid metal. These things are overpriced pieces of shit. I know because I used to have one. Anytime there's a "chip shortage" these things are always marked up to be 2x as expensive too.
I think in this day and age the best way to waste counter space is to use newspaper and dirty dishes like our great grandparents used to do.