
I play Skyrim and Oblivion alongside ESO. I'm not primarily interested in MMOs, but this is more TES than MMO to me, so it works.
I have played every TES game from Arena's release through picking up ESO nearly 6 years ago now; I have no idea how many thousands of hours that adds up to, but the only TES game I didn't complete even once was Morrowind; all the others I have completed so many times I've lost count. I don't use steam, so really. no clue.
Years back, I played these games 12 hours or so a day (mostly I didn't work - when I was working, I didn't play because I get to where I don't get enough sleep) every day of the week; now I limit that to from around 7am until around 2pm every day.
Love TES, always have, always will.