The cheap alternative is buy a big, empty, tough case (toolboxes work well, and are cheap), and come up with your own way of storing the models inside.
Thats exactly how I transport most of my army and do a little customization. I use cottonballs ripped up and light packed for my more delicate miniatures also most hobby stores like Hobbylobby and some local places have a few more alternatives.
But I've been using a Rubbermaid 40 Gallon toolbox and thats lasted me for a year already with no broken figures. So I highly reccomend it.
+ Discipline leads to Victory +
+ It is Victory in War that brings Immortality +
+ Immortality is the Gift of Chaos +
+ In exchange, Chaos demands Blood +
+ Thus, Blood must be ever spilt +
+ Therefore, Eternal Life demands Eternal War +
+ Eternal War demands Eternal Discipline +
+ Chaos will always have Blood: Yours or Theirs +
+ Speech given to the members of the Black Legions Cohort of the Damned before the battle of Nikelas. Attributed to the Alpha Legion Breviary +