There is a big difference between consumer grade displays and commercial grade displays. Commercial grade displays will be more expensive but there is a good reason why. They are built to be run for longer hours in more hostile environments.
Differences exist from mounting solutions, temperature, and colour control, RS-232 communication, display run time, run time to mean failure and warranty all play into determining which approach to take.
Interactive video walls necessitate the use of commercial grade products as they incorporate hardened glass for multi-touch capability. If you are looking for a professional installation, we have you covered, as we only work with the best commercial grade manufacturers in the AV industry.