1) Price. Electronic House recently surveyed a $15 mount sold at Monoprice.com and a $110 Monster wall mount sold at Best Buy. The result? Not too surprisingly, they found the $15 performed just fine compared to the $110 one, with a few reservations. "We would have preferred a more accurate bubble level and more robust drywall anchors be included, but both were easily overcome by my iPhone and an inexpensive third-party anchor system."
2) Weight supported. It's always a good idea to check your tech specs to make sure the mount itself supports the allotted weight of the TV. Otherwise, you're just asking for trouble.
3) Screen-size supported. Some mounts actually have differently shaped VESA mounts depending on screen size. It's best to keep on eye on this as well.
4) Equipment required. While the iPhone has a decent bubble level app, we'd highly suggest making sure you have the proper equipment if you're mounting something that relies so much on a proper level for optimum performance. Skimp on a $10 and you may end up with a eye-sore later on. Or simply find a mount that has the equipment all pre-included.
5) Got studs? As we've seen in previously underdesired outcomes, forgetting to pre-drill and finding those studs can be a bad, bad thing. We're guessing this won't that big of an issue in the future when TVs weigh as much as the iPad, but for now, it's something to think about. Find them. Pre-drill. Double check.
Lastly, no one likes ugly hanging wires, so it may be wise to consider some wire management. Choose one from the many options available we've covered in the past and the Unplggd police will be sure to stay out of your business.
[Via Electronic House]