Take the FPGA route for classic Amiga software (A1000 to A4000 software in an FPGA ARCADE board, new and robust Amiga hardware) and never look back.
Screw these thieves that sell overpriced and underpowered hardware, wich has to emulate the chipset to run classic apps & games.
Go FPGA! You won't repent 
They're not thieves, they just can leverage economies of scale. OS 4 setups are suboptimal anyway for the enthusiast who only cares about classic stuff.
The FPGA stuff though is a dream come true.