I do believe these bags were intended for the average Malifaux player who didn't have a whole heap of models (not that there is anything wrong with that, of course.)
If you are filling two Malifaux bags already, you might want to invest in one of Battlefoams larger bags to accompany your current Malifaux bag. The 720 would easily accomodate every model Wyrd makes and you could still carry the Malifaux bag for pimp cred.
Of course, I'm one of those freaks that plans out his purchases a year in advance and buys the appropriate sized bag for every new army he gets. Of course the release of 8th edition fantasy kind of threw a wrench into my latest army, but I digress....
For what it's worth, the Malifaux bag fits my wife's Arcanist and Outcast models (about 40 ss of each) and my Pandora/Teddy/Dopple crew plus my wife's LOTR army (16 infantry models and 6 cavalry models) with plenty of room to spare.
The quality is what I expect of Battlefoam, and I am loving the smaller size. The one fault with Battlefoam is their trays are just a tad bit too large for easy carrying sometimes. The 720 can be downright awkward sometimes.