It is tempting for sure these sale prices, I promised myself no more big purchases for a while since buying my 500mm f/4 IS. But the prices of some of these items is substantial marked down! Specifically the 1Dx III at only $4500. If I had the means I'd probably jump on it. Right now I'd be having to run my credit card, which is something I don't like to do for anything but emergencies.

But does purchasing gear I use to make money justify it? Hence my temptation.

Hope my thought process helps, if you got the means to comfortably afford it. I'd be tempted to go with it.