Find a tackle box or tool box and put the foam in that you like.
I had some left over sabol foam, bought a soft sided tackle box from Wal Mart for $18.00. Holds as much foam as Sabol's Platoon case which costs $39.99. Perfect for plastic minis. I suggest Plano tool boxes for metal battletech minis. In my opinion there is almost no reason to pay "specialty" mini case pricing.