That's fine from a sound quality point of view, but tubes light up the room and are hot---not fine in a hot country (Australia) and if you want to have the TV on. They are in fact just straight out fiddley-diddley, so will never be entirely practical for everybody. I use a Marantz SR4023 STEREO receiver, which gives me a nice warm sound + the convenience of remote control of volume and tone in 1db increments. These things are not to be sneezed at. Convenience and comfort can be as essential to listening pleasure as sound quality itself, and if I had to stir myself to adjust the volume or tone with each new track (with, say, home compilations) I would soon tire of the comparatively subtle benefits of tubes. I know this is all heresy, but it's also real life, and when you get a bit older you need your comfort and convenience.
Now I think I'll just take a little nap. zzzzzzzzzzzzzz
It's a personal thing.
I'm not big on using a massive receiver to drive headphones.
I keep my headphone amp right next to me, so I don't need a remote.
But you're still a heretic.