Actually, commercial displays are not that expensive. As you see in retail and airport settings, these displays are bought by the thousand and are often config

Actually, commercial displays are not that expensive. As you see in retail and airport settings, these displays are bought by the thousand and are often configured in 6/9/18 screen "display walls" ... and therefore the purchasers are price-sensitive. Yes, they are more expensive than a TV from Best Buy, but only about 2x - not 5x.