Sony's warranty is a rare exception.
And you must factor in labor. It takes us two technicians 2 billable hours to swap out a hung LCD display assuming it can be reached with relative ease.
So that is $200 minimum in labor to change it each time in addition to the cost of the display.
Keep in mind also that if something happens with liability issues, there will be legal wrangling over if the correct equipment was used.
We have installed consumer equipment in the past but we recommend against it.
__________________ Esoteric Visions Lighting and Video
A/V/L designers, installers, and integrators for churches. 15+ years of industry experience.