I get it for sure, you buy a new DAP and a few months later a newer better version comes out. It drives you nuts, I splurged on Fiio M9 on Black Friday and then a few months later I heard about the Shanling Q1. Before the M9 I had the Fiio M7 and just a few months before that the Shanling M0. That's 3 new DAP's in less than 1.5 years but the DAP world is so niche it wouldn't survive without us obsessively upgrading our DAP's wanting the next one when it comes out.
If I already owned the R3 Pro no way would I get the Saber version, to much to spend for what will likely be very minor differences.