It sounds kinda like feeding an idol which is basically like providing it sacrifices, if that is so pagan gods usually have some high consequences when the feeding stopped, even as an accident.
So lets say you stopped feeding this idol juice, your home will become a hole where a house used to be.
I don't think "hole" part is necessary. Believe me or not, point is not to "punish" player. Point is to give him interesting engineering tasks. With many powerful automation mods together, a) most of stuff is obsoleted by other mods, such as Raincraft transportation is obsoleted by BuildCraft transportation and b) there is no point of inventing optimal setups, because you can get exponential growth by spamming same old configuration. Upkeep with raising prices on same groups of machines would solve both this issues - if you use too much of the same thing, you will have to stop growth, or switch to another way of doing this task. It's probably not the best way to do this, but I just can't imagine any other.