I like it, too; the next time I'm on Cuusoo I'll vote for it for sure (I go like once a week and look at all the new additions in chronological order until I get to ones I've seen before, so I don't miss anything).
I'm not so sure I like the crayon box part; something more like the minifigure case they've already released - or something smaller, perhaps, since they don't have hair or accessories that take up space.
It's also been suggested that LEGO do better at selling parts. PAB has such a limited selection; BAM at the stores is OK, but given the wide variety of parts it still seems rather limited, and you just sometimes get lucky stumbling on some pieces you want. I know people have discussed an online BAM with more options here before... perhaps in the "what minifigures are we missing
I don't want to go off topic in this thread, though, but I would add that, as a collector and not really a "play-er," I mostly display my LEGO(*), and think a monochrome set would be quite cool... I'd even display a set at work.
(*) Except trains.