I've got one too--and a 4K TV. Like you said, it's not necessary but it's pretty nice. My worry is that next gen is eventually going to be here so the moniker of "most powerful console" won't really mean much. While it'll still be the most powerful eighth gen console, as time passes, the power difference becomes forgettable (if that makes any sense). The time is fast approaching.
The most powerful title is obviously fleeting. But we're potentially talking years of X1X being the best console for visual polish. That was certainly a motivator to getting a X1X. It may be another two years before we get more powerful consoles. Also, how much more powerful will they be than the X1X? If the aim is $399 that certainly limits potential. MS is treating the $399 X1X as a deal. But we'll have to wait and see.
I've had the X1 since launch and frankly its nice having the option of better graphics without having to jump to another platform. Also, I already have a library of games designed to take advantage of these specs. In retrospect, the X1X was kinda like next gen hardware without having to wait for good games. 2013 was a rough time, I played some underwhelming games just to see what my new hardware could do.
River City: Rival Showdown for 3DS (3/5) - River City: Tokyo Rumble for 3DS (4/5) - Zelda: BotW for Wii U (5/5) - Zelda: BotW for Switch (5/5) - Zelda: Link's Awakening for Switch (4/5) - Rage 2 for X1X (4/5) - Rage for 360 (3/5) - Streets of Rage 4 for X1/PC (4/5) - Gears 5 for X1X (5/5) - Mortal Kombat 11 for X1X (5/5) - Doom 64 for N64 (emulator) (3/5) - Crackdown 3 for X1S/X1X (4/5) - Infinity Blade III - for iPad 4 (3/5) - Infinity Blade II - for iPad 4 (4/5) - Infinity Blade - for iPad 4 (4/5) - Wolfenstein: The Old Blood for X1 (3/5) - Assassin's Creed: Origins for X1 (3/5) - Uncharted: Lost Legacy for PS4 (4/5) - EA UFC 3 for X1 (4/5) - Doom for X1 (4/5) - Titanfall 2 for X1 (4/5) - Super Mario 3D World for Wii U (4/5) - South Park: The Stick of Truth for X1 BC (4/5) - Call of Duty: WWII for X1 (4/5) -Wolfenstein II for X1 - (4/5) - Dead or Alive: Dimensions for 3DS (4/5) - Marvel vs Capcom: Infinite for X1 (3/5) - Halo Wars 2 for X1/PC (4/5) - Halo Wars: DE for X1 (4/5) - Tekken 7 for X1 (4/5) - Injustice 2 for X1 (4/5) - Yakuza 5 for PS3 (3/5) - Battlefield 1 (Campaign) for X1 (3/5) - Assassin's Creed: Syndicate for X1 (4/5) - Call of Duty: Infinite Warfare for X1 (4/5) - Call of Duty: MW Remastered for X1 (4/5) - Donkey Kong Country Returns for 3DS (4/5) - Forza Horizon 3 for X1 (5/5)