I don't sell display devices so I don't have a dog in this hunt. You can usually buy them on Amazon cheaper than I can get them through distribution and I'm a fairly high volume dealer.
It a weird time to buy a television right now and it can be quite confusing. The new 2015 displays are arriving and old unpopular 2014 inventory is being cleaned out.
At 50", I wouldn't even consider an UHD (Ultra High Definition) display today. As far as smart features, my fear is if you find a display that doesn't offer smart apps you'll be giving up performance features that do matter. (Picture quality, black level, physical size, etc)
I've seen a lot of displays and I have my personal favorites. I'm quite certain nobody wall mounts more displays in The Villages than I do. I've done business with half the posters in this thread, hahaha.
If you need some assistance, don't hesitate to contact me anytime. I can steer you in the right direction.
Tom
Villages Audio Video
Http://VillagesAV.com
352-688-1677