If you want a reasonably large battle with 28mm figures, then all those points really are valid. However in smaller scales, and for this demonstration I am using 6mm American Civil War figures from Baccus, to show it is indeed possible and you won't get a hernia from lugging it around! Even the most disapproving partner would surely tolerate this.
Take one small table, this one has castors at one end for ease of movement, and the table top conveniently folds down to take up less space. Adjustable height, perfect for that owl covered couch.