Well the TV manufacturers are at it again. This time they're trying to sell you higher resolution. But wait! They may be onto something here. Actually they are. I have no problems with better picture quality. You don't always see a dramatically better picture on every program with a 4K TV but it's usually at least slightly improved and will only get better in the future with the addition of actual 4K content. Right now what most 4K TV owners are watching is simply HDTV programs that are upscaled to look sharper. Okay with me. You're at least getting a better picture today and you're not sitting there with a silly pair of glasses on.
Televisions for the most part have become commodities. Most people I know would never consider having one repaired. They'd rather go out and buy a new one, assuming their TV is not under warranty. If you're in that circumstance, or you're considering buying a new TV now or in the near future, I'd give serious consideration to purchasing a 4K unit. They're getting to the point where they're only incrementally more expensive and they offer real benefits. If you're in the market for an ancillary TV that will get little use maybe it's worth a pass for now. But if I was in the market for a new TV I don't think I'd buy one that wasn't 4K. But you definitely won't catch me with those goofy glasses on.