so GW should have perpetuated a weak game system, just so people could use the same boring old armies they always had? That doesn't make sense, either from a "hobby" or business viewpoint.
Certainly bigger units makes people buy more models, but it has also drastically improved the game, and I think GW were aiming for both.
I have Empire and OnG armies.
Empire you can expand easily/cheaply with historical minis. Especially perry!
OnG I just bought loads of the BfSP stuff off ebay, as well as getting some generous donations from people on the forum. Still, without being given stuff, it wouldn't be that expensive to just buy an army from ebay.
There are ways to build armies a lot cheaper than buying from GW.