There's a lower bound price where it's just not worth making and selling a computer of that price point because your per-unit price won't justify the inventory costs, design effort, risk and support costs. Right now, it seems like that price is ~$350 for PCs and $250 for Chromebooks. That may be the real innovation of ChromeOS: Windows usability without Windows licensing fees, plus lower support costs. Plus, you don't have to worry as much about inventory becoming obsolete, because the OS will update as soon as they connect anyway.