Actually as a Retailer, I've found interest in 3D to be non-existant.
Production OLED sets will probably never see the light of day unless someone comes up with a revolutionary way of manufacturing panels with substantially less than a 90% failure/reject rate.
As for Smart, you can have that crap. Perhaps my tastes in entertainment ar a bit too sophisticated and discriminating for the mainstream garbage found on Netflix and other streaming sites. I can get the same garbage (In Real Time) from my cable provider and at no additional charge, no waiting for the stream to buffer sufficiently to view 5 minutes and then pause to fill yet again. I certainly don't need to use Skype on a 55" screen, and I have fewer privacy issues when viewing content on a real PC.
4K now that's a different story.
The difference in image quality is very evident even to the Walmart crowd.
Sadly at the moment we're in the same predicament as when 3D first arrived, No Content and no way to get content into the TV.
This problem is however going to be addressed by the Manufacturers in short order.
Sony's new XBRs are truly stunning, no inexpensive but stunning. Sadly 55" is the smallest that they currently offer.