Should I buy another flat screen now while they are still relatively cheap?

Prices will rise and shelves will be bare.

Your current TV is old enough to fail, so, buying now is probably wise. And I should also buy a tv while there is still a good selection! Thanks for mentioning it.

Don't forget to buy your five pencils!!!!

...and 3 dolls if that applies to you.

@bigtwin  entry is correct and accurate.  I have a Sony LED that I bought 16 years ago. That TV owes me nothing. I use it approximately 15 hours a week , sometimes more. Never fails me ( of course tomorrow it probably will crap out). 

I dread looking for another screen 16 years later. 

@texasblues1959 

Are you really @jerry123 and @hifiworld2024 ?

That is fascinating.

To the OP. Your concerns are valid. It doesn't take a rocket scientist to figure out the US is not getting shipping containers at the ports. If somebody knows where thousands of factories are being built in the US right now... please tell us all.

Container ships are down and what is coming in has about 1/3 what they used to bring in. My LG OLED is around 8-9 years old and had a complete screen and internal processor replaced a few years after warranty for just the labor costs (about $70).  That's why I'll stay with LG. This is not to say it'll happen all the time but they figured out they had a lousy processor in the C class and word got around that they'd fix it just for the labor costs if you had the receipt. 

This has me looking at a newer model with current technology and you can get a deal on a 65" G model (entry level but it would walk all over what I have) for $999 as they blow out the old stock. As you go up the line it adds about $100 so if you need some extra features, go for it. You may not have to as the G model has 4 HDMI inputs, which is rare for an entry level product. As you go up the line, I believe they use a better processor.

All the best,
Nonoise

Great subject on TV longevity.

I think TVs could last forever…. As long as you never, ever turn them on