I've kept all my boxes, if one packages them carefully, you would be supprised that they all fit inside of each other with the EP600 box being the biggest in my case. another option is to collapse them flat and they take up little room up against a basement wall or whatever.

M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85