Yup, this is what it's all about, basically.
See, I had the exact same troubling impression my first few days with the Amperex Orange Globes tubes, and in turn, again and even moreso with my current Amperex 6922.
It feels like I'm no longer hearing music or sound through my headphones for the first time, in a way. Of course, I've made a bunch of changes throughout the years that gave me this same "feeling", but never that pure and unadulterated. Using a pretty solid pair of orthos on my MK IV SE with the Amp'ex 6922 & a pair of 6N30P-DR, I really do get the sensation I've reached a breaking point. There's just a sense of music being "right" that I never quite managed to get up to now. I'd reached several plateau-like level a few times, but never that good and mesmerizing ! I mean, drums and bass guitar now sound better on my headphones than in the real world (think live concerts and such)... It's actually kind of scary...
Anyway, yes, the Amp'ex tubes were that much of revelation, and these tubes are definitely worth the money, so there is no reason to hesitate.