This getting old had really effected my not being able to make a decision. I passed up the 55" Panasonic TV a couple of weeks ago, waiting for a Samsung to go on sale. Now Best Buy has a 55" Smart Samsang for $599 and same model 60" for $799. They also have a Smarter Samsang with a quad core 55" for $799 and same model 60" for $999. Do I need a quad core and Smarter HUB for the extra $200..? I do want to use the tv with Netflix and the Internet. The $599 is probably all I really need. But when I think about looking at it for the next 5 plus years..?
IMHO You have no need for a Smart TV based on your age and what you said, the smarter the TV the more complicated the bastard is to work. 60" Samsung @ $799 sounds like a nice deal.
If you only think you'll use NetFlix, either 'smart' would be fine. The Quad-Core is basically future engineering for web surfing on your tv. Basically putting a computer brain in your tv.
Don't pay extra for a smart TV...too many options from $20-100 that are much better anyhow(Apple TV, Amazon Fire Stick, Roku, etc)