I have as of 2011, when I got rid of the 360, Nintendo Wii and DS, but even back since 2007 I'd stopped using the 360. I used to have every Nintendo system since the NES - day one, same for Xbox, same for portables, but not anymore.
I borrowed a PS3 to get through Last of Us and some of the MGS games I missed (3, PW, 4) back in 2014; but in essence I'm just using PC and mobile platforms right now. It seems likely that at the end of the console cycles this time I'll do the same for PS4 and perhaps a Nintendo system.
If Nintendo or Sony can demonstrate consistent perpetuity for their games at the very least together with solid digital purchasing policies - then chances are I would happily pick one up when there are enough titles I want and the systems are suitably priced vs what I buy. The problem here is that neither do a good job now and there will need to be several years of proving they can do it right before I get involved. I found it better for me to just invest the money on PC gaming side of things and spend all that is saved on other things.