Used A+ Tier PSU Versus New Lower Tier PSU?

[GloriousPain]

 

Basically title; But for context I have my current PC you can see the specs down below with the Corsair HX1000i but my PC is getting to the point I'd like to build a new one both for performance reasons and for concerns of some parts dying soon enough (namely my AIO water coolers; and since I have a fury X gpu, there's no fixing that one with an easy replacement)... If I were to build a new PC though I will definitely not have the same budget I had last time, so there's no way I'd get a similar quality PSU with the lower budget... If you were in this case would you rather use the PSU you currently have (and have had for a few years) or get a new one of lower quality? I've taken good care of my PSU; I've never let my PC be above normal gaming temps for more than an hour or two stress test. I've only mined/folded lightly. I've never done overly aggressive overclocked (FuryX barely OC's eitherway and my 5820k wasn't too much of a good bin either) infact for a large chunk of the time I've had the build I've left my CPU at 4Ghz OR LESS(and some large portions of time at stock clock with a negative voltage offset) and my FuryX had been under- clocked/volted slightly. 

[Spotty]

You can reuse the HX1000i. It's a good PSU and if it's working fine then there's no reason to replace it. You'll still have plenty of warranty left on it as well.