Yes, there is a reason for the higher cost: price gauging. A pair of 7" displays with Android like software and GPS are ~ $10,000, if you want it in 12" you pay

Yes, there is a reason for the higher cost: price gauging. A pair of 7" displays with Android like software and GPS are ~ $10,000, if you want it in 12" you pay another $5,000. There is no competition in the market. This is why so many people use iPads and $100 software instead.