[momenti]

Do you really pay for less? Digital signage displays often run 24/7 in temper proof cases with relatively poor ventilation and heat dissipation. Thus you might actually get a display that lasts longer (which, AFAIK, mostly comes down to higher quality capacitors and capacitors placed where they do not overheat, e.g. not directly next to high current transistors and resistors, which is common planned obsolesce practice in consumer TVs).