Man, That's wild with the pricing... How can they possibly justify it?
My HL setup is a 4 ft x 2 ft x 2 ft waterproof terrarium made with construction foam with sliding glass front doors and glass lid -made DIY for about $50-60 total and uses a 8000BTU Window air conditioner with air pushed from the window through a 4" diameter dryer duct hose that is filled with fog from a Vicks humidifier and a 4" PC fan controlled by a Zoomed Hygrotherm humidity and temperature control device. The AC, dryer tube, fan, 12v DC fan power source, hygrotherm all together ran about $300 so for $350 +/-, no $5,000+