I have a 2010 46 Samsung HDtv 1080P but my friend at work was like " you should get a new tv a 60" 4k tv what do I do?

My Samsung HDtv is good and has 1080P natively on it still works fine
I have a 2010 46 Samsung HDtv 1080P but my friend at work was like " you should get a new tv a 60" 4k tv what do I do?
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